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Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v - HCC Tactical

ACOG® 4x32 (ARMY RCO) M4

SKU: TRTA31RCO-M150CP-G

Trijicon

$2,012.00 $1,458.31 Sale

The Scope That Changed Everything. There's a reason the Trijicon ACOG® (Advanced Combat Optical Gunsight) is the official medium-distance engagement optic of the Marine Corps...
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Color
Black
Reticle
4 4
Available at checkout
{"id":8739546202266,"title":"ACOG® 4x32 (ARMY RCO) M4","handle":"acog-4x32-army-rco-m4","description":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003eThe Scope That Changed Everything.\u003c\/strong\u003e There's a reason the Trijicon ACOG® (Advanced Combat Optical Gunsight) is the official medium-distance engagement optic of the Marine Corps and U.S. Special Operations Forces.\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003eThis Product is subject to ITAR\/EAR Export Controls. Please visit our ITAR\/EAR page (\u003cspan style=\"color: rgb(138, 19, 0);\"\u003e\u003cu\u003e\u003ca href=\"https:\/\/www.hcctac.com\/pages\/itar-ear-statement\" rel=\"noopener noreferrer nofollow\" style=\"color: rgb(138, 19, 0);\"\u003eclick here\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e) or \u003cspan style=\"color: rgb(138, 19, 0);\"\u003e\u003cu\u003e\u003ca href=\"https:\/\/www.hcctac.com\/pages\/contact-us\" rel=\"noopener noreferrer nofollow\" style=\"color: rgb(138, 19, 0);\"\u003eContact Us\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e for more Information.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003eGreen\/ Red Chevron Reticle, Thumbscrew Mount, Tritium \/ Fiber Optics Illuminated.\u003cbr\u003e\u003c\/strong\u003e\u003cbr\u003eThe concept was simple; a durable scope with a reticle that illuminates in low-light and no-light situations—without requiring the use of batteries.\u003c\/p\u003e\n\u003cp\u003eMore than 30 years later, the original ACOG stands the test of time as one of our most popular items. Choose from many 4x32 options, including the Official Rifle Combat Optic (RCO) of the U.S. Marine Corps.\u003c\/p\u003e\n\u003cp\u003eThe TA31RCO is an Advanced Combat Optical Gunsight (ACOG) designed for the US Army's M4 weapon system (14.5\" barrel). It incorporates dual illumination technology using a combination of fiber optics and self-luminous tritium. This allows the aiming point to always be illuminated without the use of batteries. The tritium illuminates the aiming point in total darkness, and the fiber optic self-adjusts reticle brightness during daylight according to ambient light conditions. This allows the operator to keep both eyes open while engaging targets and maintaining maximum situational awareness. Designed to the exact specifications of the United States Marine Corps, the unique reticle pattern provides quick target acquisition at close combat ranges while providing enhanced target identification and hit probability out to 800 meters utilizing the Bullet Drop Compensator. No tools are needed for windage and elevation adjustments because the TA31RCO features external adjusters, making it waterproof up to 11m without the caps. Mounting bosses are integrated into the housing by the eyepiece to allow the easy addition of a Trijicon RMR® (not included).\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 3 []\"\u003e\u003cstrong\u003eSPECIFICATIONS:\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-pm-slice=\"3 3 []\"\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-start=\"103\" data-end=\"137\"\u003e\n\u003cstrong data-start=\"105\" data-end=\"116\"\u003eWeight:\u003c\/strong\u003e 16.2 oz (459.26 g)\u003c\/li\u003e\n\u003cli data-start=\"138\" data-end=\"163\"\u003e\n\u003cstrong data-start=\"140\" data-end=\"158\"\u003eMagnification:\u003c\/strong\u003e 4x\u003c\/li\u003e\n\u003cli data-start=\"164\" data-end=\"193\"\u003e\n\u003cstrong data-start=\"166\" data-end=\"185\"\u003eObjective Size:\u003c\/strong\u003e 32 mm\u003c\/li\u003e\n\u003cli data-start=\"194\" data-end=\"226\"\u003e\n\u003cstrong data-start=\"196\" data-end=\"216\"\u003eReticle Pattern:\u003c\/strong\u003e Chevron\u003c\/li\u003e\n\u003cli data-start=\"227\" data-end=\"265\"\u003e\n\u003cstrong data-start=\"229\" data-end=\"251\"\u003eDay Reticle Color:\u003c\/strong\u003e Red \/ Green\u003c\/li\u003e\n\u003cli data-start=\"266\" data-end=\"306\"\u003e\n\u003cstrong data-start=\"268\" data-end=\"292\"\u003eNight Reticle Color:\u003c\/strong\u003e Red \/ Green\u003c\/li\u003e\n\u003cli data-start=\"307\" data-end=\"350\"\u003e\n\u003cstrong data-start=\"309\" data-end=\"344\"\u003eBullet Drop Compensating (BDC):\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli data-start=\"351\" data-end=\"390\"\u003e\n\u003cstrong data-start=\"353\" data-end=\"365\"\u003eCaliber:\u003c\/strong\u003e 0.223 (14.5 in barrel)\u003c\/li\u003e\n\u003cli data-start=\"391\" data-end=\"431\"\u003e\n\u003cstrong data-start=\"393\" data-end=\"425\"\u003eBindon Aiming Concept (BAC):\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli data-start=\"432\" data-end=\"483\"\u003e\n\u003cstrong data-start=\"434\" data-end=\"458\"\u003eIllumination Source:\u003c\/strong\u003e Fibre Optics \u0026amp; Tritium\u003c\/li\u003e\n\u003cli data-start=\"484\" data-end=\"528\"\u003e\n\u003cstrong data-start=\"486\" data-end=\"503\"\u003ePower Source:\u003c\/strong\u003e Fibre Optics \u0026amp; Tritium\u003c\/li\u003e\n\u003cli data-start=\"529\" data-end=\"565\"\u003e\n\u003cstrong data-start=\"531\" data-end=\"546\"\u003eEye Relief:\u003c\/strong\u003e 1.5 in (38.1 mm)\u003c\/li\u003e\n\u003cli data-start=\"566\" data-end=\"603\"\u003e\n\u003cstrong data-start=\"568\" data-end=\"583\"\u003eExit Pupil:\u003c\/strong\u003e 0.32 in (8.13 mm)\u003c\/li\u003e\n\u003cli data-start=\"604\" data-end=\"639\"\u003e\n\u003cstrong data-start=\"606\" data-end=\"634\"\u003eField of View (Degrees):\u003c\/strong\u003e 7°\u003c\/li\u003e\n\u003cli data-start=\"640\" data-end=\"698\"\u003e\n\u003cstrong data-start=\"642\" data-end=\"660\"\u003eField of View:\u003c\/strong\u003e 36.8 ft @ 100 yds (12.27 m @ 100 m)\u003c\/li\u003e\n\u003cli data-start=\"699\" data-end=\"745\"\u003e\n\u003cstrong data-start=\"701\" data-end=\"711\"\u003eMount:\u003c\/strong\u003e Flattop Thumbscrew Mount (TA51)\u003c\/li\u003e\n\u003cli data-start=\"746\" data-end=\"788\"\u003e\n\u003cstrong data-start=\"748\" data-end=\"769\"\u003eHousing Material:\u003c\/strong\u003e Forged Aluminium\u003c\/li\u003e\n\u003cli data-start=\"789\" data-end=\"816\"\u003e\n\u003cstrong data-start=\"791\" data-end=\"802\"\u003eFinish:\u003c\/strong\u003e Matte Black\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-start=\"95\" data-end=\"277\"\u003e\n\u003cstrong data-start=\"97\" data-end=\"125\"\u003eAlways On, Always Ready:\u003c\/strong\u003e Most ACOG® models are battery-free, featuring a tritium\/fiber-optic illuminated reticle that automatically adjusts brightness based on available light.\u003c\/li\u003e\n\u003cli data-start=\"279\" data-end=\"461\"\u003e\n\u003cstrong data-start=\"281\" data-end=\"298\"\u003eTake Control:\u003c\/strong\u003e Select ACOG models feature user-adjustable brightness powered by a single AA battery. The 3.5x35 LED and 4x32 LED models offer six adjustable brightness settings.\u003c\/li\u003e\n\u003cli data-start=\"463\" data-end=\"600\"\u003e\n\u003cstrong data-start=\"465\" data-end=\"501\"\u003eRugged, Reliable Housing Design:\u003c\/strong\u003e Fixed-power construction minimizes moving parts, creating a nearly indestructible sighting system.\u003c\/li\u003e\n\u003cli data-start=\"602\" data-end=\"741\"\u003e\n\u003cstrong data-start=\"604\" data-end=\"632\"\u003e“Both Eyes Open” Design:\u003c\/strong\u003e Shooting with both eyes open using the Bindon Aiming Concept (BAC) enhances speed and situational awareness.\u003c\/li\u003e\n\u003cli data-start=\"743\" data-end=\"892\"\u003e\n\u003cstrong data-start=\"745\" data-end=\"769\"\u003eOutstanding Clarity:\u003c\/strong\u003e High-quality glass and multi-coated lenses maximize light transmission and deliver a clear, distortion-free field of view.\u003c\/li\u003e\n\u003cli data-start=\"894\" data-end=\"1038\"\u003e\n\u003cstrong data-start=\"896\" data-end=\"930\"\u003eExact Target Distances \u0026amp; Hold:\u003c\/strong\u003e Most ACOG models feature bullet-drop compensating and target-ranging reticles for precise, decisive aiming.\u003c\/li\u003e\n\u003cli data-start=\"1040\" data-end=\"1125\"\u003e\n\u003cstrong data-start=\"1042\" data-end=\"1060\"\u003eCombat Proven:\u003c\/strong\u003e No other magnified optic has seen more combat use than the ACOG.\u003c\/li\u003e\n\u003cli data-start=\"1127\" data-end=\"1277\"\u003e\n\u003cstrong data-start=\"1129\" data-end=\"1149\"\u003eShock-Resistant:\u003c\/strong\u003e Proven to withstand recoil from .22LR to .50 BMG and everything in between. Easily passes U.S. military drop-test requirements.\u003c\/li\u003e\n\u003cli data-start=\"1279\" data-end=\"1441\"\u003e\n\u003cstrong data-start=\"1281\" data-end=\"1296\"\u003eWaterproof:\u003c\/strong\u003e Exceeds military waterproof standards. Dry nitrogen-filled housing eliminates fogging and ensures reliable performance in extreme cold and heat.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Downloads\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cul data-pm-slice=\"3 3 []\"\u003e\n\u003cli\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1664\/1057\/files\/PML4036-1_Rev_3__ACOG_Family_Spec_Sheet_single_312ca229-528c-42c1-b700-d03a935afb43.pdf?v=1608550515\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1664\/1057\/files\/PML4036-1_Rev_3__ACOG_Family_Spec_Sheet_single_312ca229-528c-42c1-b700-d03a935afb43.pdf?v=1608550515\" rel=\"noopener\" target=\"_blank\"\u003eSpec Sheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1664\/1057\/files\/RCO_M4M150_Chevron_Reticle_Dimensions4x32.pdf?v=1608553327\" target=\"_blank\"\u003eRCO M4\/M150 Chevron Reticle\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","published_at":"2026-02-22T19:24:47-05:00","created_at":"2026-01-15T10:53:03-05:00","vendor":"Trijicon","type":"Electronic Optics","tags":["EAR","ECCN 0A504.a","Fixed Mag.","Trijicon"],"price":145831,"price_min":145831,"price_max":145831,"available":true,"price_varies":false,"compare_at_price":201200,"compare_at_price_min":201200,"compare_at_price_max":201200,"compare_at_price_varies":false,"variants":[{"id":47013343494298,"title":"Black \/ Green Chevron Reticle - M4","option1":"Black","option2":"Green Chevron Reticle - M4","option3":null,"sku":"TRTA31RCO-M150CP-G","requires_shipping":true,"taxable":false,"featured_image":{"id":47221389754522,"product_id":8739546202266,"position":2,"created_at":"2026-01-15T10:59:18-05:00","updated_at":"2026-01-15T10:59:43-05:00","alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v - HCC Tactical","width":2000,"height":2000,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419175.jpg?v=1768492783","variant_ids":[47013343494298]},"available":true,"name":"ACOG® 4x32 (ARMY RCO) M4 - Black \/ Green Chevron Reticle - M4","public_title":"Black \/ Green Chevron Reticle - M4","options":["Black","Green Chevron Reticle - M4"],"price":145831,"weight":567,"compare_at_price":201200,"inventory_quantity":6,"inventory_management":"shopify","inventory_policy":"deny","barcode":"719307303423","featured_media":{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v - HCC Tactical","id":36063163318426,"position":2,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419175.jpg?v=1768492783"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":47013343527066,"title":"Black \/ Red Chevron Reticle - M4","option1":"Black","option2":"Red Chevron Reticle - M4","option3":null,"sku":"TRTA31RCOM150CP","requires_shipping":true,"taxable":false,"featured_image":{"id":47221389525146,"product_id":8739546202266,"position":3,"created_at":"2026-01-15T10:59:18-05:00","updated_at":"2026-01-15T10:59:43-05:00","alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v2 - HCC Tactical","width":2000,"height":2000,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419165.jpg?v=1768492783","variant_ids":[47013343527066]},"available":true,"name":"ACOG® 4x32 (ARMY RCO) M4 - Black \/ Red Chevron Reticle - M4","public_title":"Black \/ Red Chevron Reticle - M4","options":["Black","Red Chevron Reticle - M4"],"price":145831,"weight":567,"compare_at_price":201200,"inventory_quantity":9,"inventory_management":"shopify","inventory_policy":"deny","barcode":"719307302242","featured_media":{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v2 - HCC Tactical","id":36063163089050,"position":3,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419165.jpg?v=1768492783"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/www.hcctac.com\/cdn\/shop\/files\/217419177.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419175.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419165.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419163_1.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419168.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419169.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419170.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419171.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419172.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419173.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419177_1.jpg?v=1768492783"],"featured_image":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419177.jpg?v=1768492783","options":["Color","Reticle"],"media":[{"alt":"Black; 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Please visit our ITAR\/EAR page (\u003cspan style=\"color: rgb(138, 19, 0);\"\u003e\u003cu\u003e\u003ca href=\"https:\/\/www.hcctac.com\/pages\/itar-ear-statement\" rel=\"noopener noreferrer nofollow\" style=\"color: rgb(138, 19, 0);\"\u003eclick here\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e) or \u003cspan style=\"color: rgb(138, 19, 0);\"\u003e\u003cu\u003e\u003ca href=\"https:\/\/www.hcctac.com\/pages\/contact-us\" rel=\"noopener noreferrer nofollow\" style=\"color: rgb(138, 19, 0);\"\u003eContact Us\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e for more Information.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003eGreen\/ Red Chevron Reticle, Thumbscrew Mount, Tritium \/ Fiber Optics Illuminated.\u003cbr\u003e\u003c\/strong\u003e\u003cbr\u003eThe concept was simple; a durable scope with a reticle that illuminates in low-light and no-light situations—without requiring the use of batteries.\u003c\/p\u003e\n\u003cp\u003eMore than 30 years later, the original ACOG stands the test of time as one of our most popular items. Choose from many 4x32 options, including the Official Rifle Combat Optic (RCO) of the U.S. Marine Corps.\u003c\/p\u003e\n\u003cp\u003eThe TA31RCO is an Advanced Combat Optical Gunsight (ACOG) designed for the US Army's M4 weapon system (14.5\" barrel). It incorporates dual illumination technology using a combination of fiber optics and self-luminous tritium. This allows the aiming point to always be illuminated without the use of batteries. The tritium illuminates the aiming point in total darkness, and the fiber optic self-adjusts reticle brightness during daylight according to ambient light conditions. This allows the operator to keep both eyes open while engaging targets and maintaining maximum situational awareness. Designed to the exact specifications of the United States Marine Corps, the unique reticle pattern provides quick target acquisition at close combat ranges while providing enhanced target identification and hit probability out to 800 meters utilizing the Bullet Drop Compensator. No tools are needed for windage and elevation adjustments because the TA31RCO features external adjusters, making it waterproof up to 11m without the caps. Mounting bosses are integrated into the housing by the eyepiece to allow the easy addition of a Trijicon RMR® (not included).\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 3 []\"\u003e\u003cstrong\u003eSPECIFICATIONS:\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-pm-slice=\"3 3 []\"\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-start=\"103\" data-end=\"137\"\u003e\n\u003cstrong data-start=\"105\" data-end=\"116\"\u003eWeight:\u003c\/strong\u003e 16.2 oz (459.26 g)\u003c\/li\u003e\n\u003cli data-start=\"138\" data-end=\"163\"\u003e\n\u003cstrong data-start=\"140\" data-end=\"158\"\u003eMagnification:\u003c\/strong\u003e 4x\u003c\/li\u003e\n\u003cli data-start=\"164\" data-end=\"193\"\u003e\n\u003cstrong data-start=\"166\" data-end=\"185\"\u003eObjective Size:\u003c\/strong\u003e 32 mm\u003c\/li\u003e\n\u003cli data-start=\"194\" data-end=\"226\"\u003e\n\u003cstrong data-start=\"196\" data-end=\"216\"\u003eReticle Pattern:\u003c\/strong\u003e Chevron\u003c\/li\u003e\n\u003cli data-start=\"227\" data-end=\"265\"\u003e\n\u003cstrong data-start=\"229\" data-end=\"251\"\u003eDay Reticle Color:\u003c\/strong\u003e Red \/ Green\u003c\/li\u003e\n\u003cli data-start=\"266\" data-end=\"306\"\u003e\n\u003cstrong data-start=\"268\" data-end=\"292\"\u003eNight Reticle Color:\u003c\/strong\u003e Red \/ Green\u003c\/li\u003e\n\u003cli data-start=\"307\" data-end=\"350\"\u003e\n\u003cstrong data-start=\"309\" data-end=\"344\"\u003eBullet Drop Compensating (BDC):\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli data-start=\"351\" data-end=\"390\"\u003e\n\u003cstrong data-start=\"353\" data-end=\"365\"\u003eCaliber:\u003c\/strong\u003e 0.223 (14.5 in barrel)\u003c\/li\u003e\n\u003cli data-start=\"391\" data-end=\"431\"\u003e\n\u003cstrong data-start=\"393\" data-end=\"425\"\u003eBindon Aiming Concept (BAC):\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli data-start=\"432\" data-end=\"483\"\u003e\n\u003cstrong data-start=\"434\" data-end=\"458\"\u003eIllumination Source:\u003c\/strong\u003e Fibre Optics \u0026amp; Tritium\u003c\/li\u003e\n\u003cli data-start=\"484\" data-end=\"528\"\u003e\n\u003cstrong data-start=\"486\" data-end=\"503\"\u003ePower Source:\u003c\/strong\u003e Fibre Optics \u0026amp; Tritium\u003c\/li\u003e\n\u003cli data-start=\"529\" data-end=\"565\"\u003e\n\u003cstrong data-start=\"531\" data-end=\"546\"\u003eEye Relief:\u003c\/strong\u003e 1.5 in (38.1 mm)\u003c\/li\u003e\n\u003cli data-start=\"566\" data-end=\"603\"\u003e\n\u003cstrong data-start=\"568\" data-end=\"583\"\u003eExit Pupil:\u003c\/strong\u003e 0.32 in (8.13 mm)\u003c\/li\u003e\n\u003cli data-start=\"604\" data-end=\"639\"\u003e\n\u003cstrong data-start=\"606\" data-end=\"634\"\u003eField of View (Degrees):\u003c\/strong\u003e 7°\u003c\/li\u003e\n\u003cli data-start=\"640\" data-end=\"698\"\u003e\n\u003cstrong data-start=\"642\" data-end=\"660\"\u003eField of View:\u003c\/strong\u003e 36.8 ft @ 100 yds (12.27 m @ 100 m)\u003c\/li\u003e\n\u003cli data-start=\"699\" data-end=\"745\"\u003e\n\u003cstrong data-start=\"701\" data-end=\"711\"\u003eMount:\u003c\/strong\u003e Flattop Thumbscrew Mount (TA51)\u003c\/li\u003e\n\u003cli data-start=\"746\" data-end=\"788\"\u003e\n\u003cstrong data-start=\"748\" data-end=\"769\"\u003eHousing Material:\u003c\/strong\u003e Forged Aluminium\u003c\/li\u003e\n\u003cli data-start=\"789\" data-end=\"816\"\u003e\n\u003cstrong data-start=\"791\" data-end=\"802\"\u003eFinish:\u003c\/strong\u003e Matte Black\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-start=\"95\" data-end=\"277\"\u003e\n\u003cstrong data-start=\"97\" data-end=\"125\"\u003eAlways On, Always Ready:\u003c\/strong\u003e Most ACOG® models are battery-free, featuring a tritium\/fiber-optic illuminated reticle that automatically adjusts brightness based on available light.\u003c\/li\u003e\n\u003cli data-start=\"279\" data-end=\"461\"\u003e\n\u003cstrong data-start=\"281\" data-end=\"298\"\u003eTake Control:\u003c\/strong\u003e Select ACOG models feature user-adjustable brightness powered by a single AA battery. The 3.5x35 LED and 4x32 LED models offer six adjustable brightness settings.\u003c\/li\u003e\n\u003cli data-start=\"463\" data-end=\"600\"\u003e\n\u003cstrong data-start=\"465\" data-end=\"501\"\u003eRugged, Reliable Housing Design:\u003c\/strong\u003e Fixed-power construction minimizes moving parts, creating a nearly indestructible sighting system.\u003c\/li\u003e\n\u003cli data-start=\"602\" data-end=\"741\"\u003e\n\u003cstrong data-start=\"604\" data-end=\"632\"\u003e“Both Eyes Open” Design:\u003c\/strong\u003e Shooting with both eyes open using the Bindon Aiming Concept (BAC) enhances speed and situational awareness.\u003c\/li\u003e\n\u003cli data-start=\"743\" data-end=\"892\"\u003e\n\u003cstrong data-start=\"745\" data-end=\"769\"\u003eOutstanding Clarity:\u003c\/strong\u003e High-quality glass and multi-coated lenses maximize light transmission and deliver a clear, distortion-free field of view.\u003c\/li\u003e\n\u003cli data-start=\"894\" data-end=\"1038\"\u003e\n\u003cstrong data-start=\"896\" data-end=\"930\"\u003eExact Target Distances \u0026amp; Hold:\u003c\/strong\u003e Most ACOG models feature bullet-drop compensating and target-ranging reticles for precise, decisive aiming.\u003c\/li\u003e\n\u003cli data-start=\"1040\" data-end=\"1125\"\u003e\n\u003cstrong data-start=\"1042\" data-end=\"1060\"\u003eCombat Proven:\u003c\/strong\u003e No other magnified optic has seen more combat use than the ACOG.\u003c\/li\u003e\n\u003cli data-start=\"1127\" data-end=\"1277\"\u003e\n\u003cstrong data-start=\"1129\" data-end=\"1149\"\u003eShock-Resistant:\u003c\/strong\u003e Proven to withstand recoil from .22LR to .50 BMG and everything in between. Easily passes U.S. military drop-test requirements.\u003c\/li\u003e\n\u003cli data-start=\"1279\" data-end=\"1441\"\u003e\n\u003cstrong data-start=\"1281\" data-end=\"1296\"\u003eWaterproof:\u003c\/strong\u003e Exceeds military waterproof standards. Dry nitrogen-filled housing eliminates fogging and ensures reliable performance in extreme cold and heat.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Downloads\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cul data-pm-slice=\"3 3 []\"\u003e\n\u003cli\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1664\/1057\/files\/PML4036-1_Rev_3__ACOG_Family_Spec_Sheet_single_312ca229-528c-42c1-b700-d03a935afb43.pdf?v=1608550515\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1664\/1057\/files\/PML4036-1_Rev_3__ACOG_Family_Spec_Sheet_single_312ca229-528c-42c1-b700-d03a935afb43.pdf?v=1608550515\" rel=\"noopener\" target=\"_blank\"\u003eSpec Sheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1664\/1057\/files\/RCO_M4M150_Chevron_Reticle_Dimensions4x32.pdf?v=1608553327\" target=\"_blank\"\u003eRCO M4\/M150 Chevron Reticle\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e"}

The Scope That Changed Everything. There's a reason the Trijicon ACOG® (Advanced Combat Optical Gunsight) is the official medium-distance engagement optic of the Marine Corps and U.S. Special Operations Forces.

This Product is subject to ITAR/EAR Export Controls. Please visit our ITAR/EAR page (click here) or Contact Us for more Information.

Green/ Red Chevron Reticle, Thumbscrew Mount, Tritium / Fiber Optics Illuminated.

The concept was simple; a durable scope with a reticle that illuminates in low-light and no-light situations—without requiring the use of batteries.

More than 30 years later, the original ACOG stands the test of time as one of our most popular items. Choose from many 4x32 options, including the Official Rifle Combat Optic (RCO) of the U.S. Marine Corps.

The TA31RCO is an Advanced Combat Optical Gunsight (ACOG) designed for the US Army's M4 weapon system (14.5" barrel). It incorporates dual illumination technology using a combination of fiber optics and self-luminous tritium. This allows the aiming point to always be illuminated without the use of batteries. The tritium illuminates the aiming point in total darkness, and the fiber optic self-adjusts reticle brightness during daylight according to ambient light conditions. This allows the operator to keep both eyes open while engaging targets and maintaining maximum situational awareness. Designed to the exact specifications of the United States Marine Corps, the unique reticle pattern provides quick target acquisition at close combat ranges while providing enhanced target identification and hit probability out to 800 meters utilizing the Bullet Drop Compensator. No tools are needed for windage and elevation adjustments because the TA31RCO features external adjusters, making it waterproof up to 11m without the caps. Mounting bosses are integrated into the housing by the eyepiece to allow the easy addition of a Trijicon RMR® (not included).

SPECIFICATIONS:

      • Weight: 16.2 oz (459.26 g)
      • Magnification: 4x
      • Objective Size: 32 mm
      • Reticle Pattern: Chevron
      • Day Reticle Color: Red / Green
      • Night Reticle Color: Red / Green
      • Bullet Drop Compensating (BDC): Yes
      • Caliber: 0.223 (14.5 in barrel)
      • Bindon Aiming Concept (BAC): Yes
      • Illumination Source: Fibre Optics & Tritium
      • Power Source: Fibre Optics & Tritium
      • Eye Relief: 1.5 in (38.1 mm)
      • Exit Pupil: 0.32 in (8.13 mm)
      • Field of View (Degrees): 7°
      • Field of View: 36.8 ft @ 100 yds (12.27 m @ 100 m)
      • Mount: Flattop Thumbscrew Mount (TA51)
      • Housing Material: Forged Aluminium
      • Finish: Matte Black

      FEATURES:

        • Always On, Always Ready: Most ACOG® models are battery-free, featuring a tritium/fiber-optic illuminated reticle that automatically adjusts brightness based on available light.
        • Take Control: Select ACOG models feature user-adjustable brightness powered by a single AA battery. The 3.5x35 LED and 4x32 LED models offer six adjustable brightness settings.
        • Rugged, Reliable Housing Design: Fixed-power construction minimizes moving parts, creating a nearly indestructible sighting system.
        • “Both Eyes Open” Design: Shooting with both eyes open using the Bindon Aiming Concept (BAC) enhances speed and situational awareness.
        • Outstanding Clarity: High-quality glass and multi-coated lenses maximize light transmission and deliver a clear, distortion-free field of view.
        • Exact Target Distances & Hold: Most ACOG models feature bullet-drop compensating and target-ranging reticles for precise, decisive aiming.
        • Combat Proven: No other magnified optic has seen more combat use than the ACOG.
        • Shock-Resistant: Proven to withstand recoil from .22LR to .50 BMG and everything in between. Easily passes U.S. military drop-test requirements.
        • Waterproof: Exceeds military waterproof standards. Dry nitrogen-filled housing eliminates fogging and ensures reliable performance in extreme cold and heat.

        Product Downloads

        {"id":8739546202266,"title":"ACOG® 4x32 (ARMY RCO) M4","handle":"acog-4x32-army-rco-m4","description":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003eThe Scope That Changed Everything.\u003c\/strong\u003e There's a reason the Trijicon ACOG® (Advanced Combat Optical Gunsight) is the official medium-distance engagement optic of the Marine Corps and U.S. Special Operations Forces.\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003eThis Product is subject to ITAR\/EAR Export Controls. Please visit our ITAR\/EAR page (\u003cspan style=\"color: rgb(138, 19, 0);\"\u003e\u003cu\u003e\u003ca href=\"https:\/\/www.hcctac.com\/pages\/itar-ear-statement\" rel=\"noopener noreferrer nofollow\" style=\"color: rgb(138, 19, 0);\"\u003eclick here\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e) or \u003cspan style=\"color: rgb(138, 19, 0);\"\u003e\u003cu\u003e\u003ca href=\"https:\/\/www.hcctac.com\/pages\/contact-us\" rel=\"noopener noreferrer nofollow\" style=\"color: rgb(138, 19, 0);\"\u003eContact Us\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e for more Information.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003eGreen\/ Red Chevron Reticle, Thumbscrew Mount, Tritium \/ Fiber Optics Illuminated.\u003cbr\u003e\u003c\/strong\u003e\u003cbr\u003eThe concept was simple; a durable scope with a reticle that illuminates in low-light and no-light situations—without requiring the use of batteries.\u003c\/p\u003e\n\u003cp\u003eMore than 30 years later, the original ACOG stands the test of time as one of our most popular items. Choose from many 4x32 options, including the Official Rifle Combat Optic (RCO) of the U.S. Marine Corps.\u003c\/p\u003e\n\u003cp\u003eThe TA31RCO is an Advanced Combat Optical Gunsight (ACOG) designed for the US Army's M4 weapon system (14.5\" barrel). It incorporates dual illumination technology using a combination of fiber optics and self-luminous tritium. This allows the aiming point to always be illuminated without the use of batteries. The tritium illuminates the aiming point in total darkness, and the fiber optic self-adjusts reticle brightness during daylight according to ambient light conditions. This allows the operator to keep both eyes open while engaging targets and maintaining maximum situational awareness. Designed to the exact specifications of the United States Marine Corps, the unique reticle pattern provides quick target acquisition at close combat ranges while providing enhanced target identification and hit probability out to 800 meters utilizing the Bullet Drop Compensator. No tools are needed for windage and elevation adjustments because the TA31RCO features external adjusters, making it waterproof up to 11m without the caps. Mounting bosses are integrated into the housing by the eyepiece to allow the easy addition of a Trijicon RMR® (not included).\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 3 []\"\u003e\u003cstrong\u003eSPECIFICATIONS:\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-pm-slice=\"3 3 []\"\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-start=\"103\" data-end=\"137\"\u003e\n\u003cstrong data-start=\"105\" data-end=\"116\"\u003eWeight:\u003c\/strong\u003e 16.2 oz (459.26 g)\u003c\/li\u003e\n\u003cli data-start=\"138\" data-end=\"163\"\u003e\n\u003cstrong data-start=\"140\" data-end=\"158\"\u003eMagnification:\u003c\/strong\u003e 4x\u003c\/li\u003e\n\u003cli data-start=\"164\" data-end=\"193\"\u003e\n\u003cstrong data-start=\"166\" data-end=\"185\"\u003eObjective Size:\u003c\/strong\u003e 32 mm\u003c\/li\u003e\n\u003cli data-start=\"194\" data-end=\"226\"\u003e\n\u003cstrong data-start=\"196\" data-end=\"216\"\u003eReticle Pattern:\u003c\/strong\u003e Chevron\u003c\/li\u003e\n\u003cli data-start=\"227\" data-end=\"265\"\u003e\n\u003cstrong data-start=\"229\" data-end=\"251\"\u003eDay Reticle Color:\u003c\/strong\u003e Red \/ Green\u003c\/li\u003e\n\u003cli data-start=\"266\" data-end=\"306\"\u003e\n\u003cstrong data-start=\"268\" data-end=\"292\"\u003eNight Reticle Color:\u003c\/strong\u003e Red \/ Green\u003c\/li\u003e\n\u003cli data-start=\"307\" data-end=\"350\"\u003e\n\u003cstrong data-start=\"309\" data-end=\"344\"\u003eBullet Drop Compensating (BDC):\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli data-start=\"351\" data-end=\"390\"\u003e\n\u003cstrong data-start=\"353\" data-end=\"365\"\u003eCaliber:\u003c\/strong\u003e 0.223 (14.5 in barrel)\u003c\/li\u003e\n\u003cli data-start=\"391\" data-end=\"431\"\u003e\n\u003cstrong data-start=\"393\" data-end=\"425\"\u003eBindon Aiming Concept (BAC):\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli data-start=\"432\" data-end=\"483\"\u003e\n\u003cstrong data-start=\"434\" data-end=\"458\"\u003eIllumination Source:\u003c\/strong\u003e Fibre Optics \u0026amp; Tritium\u003c\/li\u003e\n\u003cli data-start=\"484\" data-end=\"528\"\u003e\n\u003cstrong data-start=\"486\" data-end=\"503\"\u003ePower Source:\u003c\/strong\u003e Fibre Optics \u0026amp; Tritium\u003c\/li\u003e\n\u003cli data-start=\"529\" data-end=\"565\"\u003e\n\u003cstrong data-start=\"531\" data-end=\"546\"\u003eEye Relief:\u003c\/strong\u003e 1.5 in (38.1 mm)\u003c\/li\u003e\n\u003cli data-start=\"566\" data-end=\"603\"\u003e\n\u003cstrong data-start=\"568\" data-end=\"583\"\u003eExit Pupil:\u003c\/strong\u003e 0.32 in (8.13 mm)\u003c\/li\u003e\n\u003cli data-start=\"604\" data-end=\"639\"\u003e\n\u003cstrong data-start=\"606\" data-end=\"634\"\u003eField of View (Degrees):\u003c\/strong\u003e 7°\u003c\/li\u003e\n\u003cli data-start=\"640\" data-end=\"698\"\u003e\n\u003cstrong data-start=\"642\" data-end=\"660\"\u003eField of View:\u003c\/strong\u003e 36.8 ft @ 100 yds (12.27 m @ 100 m)\u003c\/li\u003e\n\u003cli data-start=\"699\" data-end=\"745\"\u003e\n\u003cstrong data-start=\"701\" data-end=\"711\"\u003eMount:\u003c\/strong\u003e Flattop Thumbscrew Mount (TA51)\u003c\/li\u003e\n\u003cli data-start=\"746\" data-end=\"788\"\u003e\n\u003cstrong data-start=\"748\" data-end=\"769\"\u003eHousing Material:\u003c\/strong\u003e Forged Aluminium\u003c\/li\u003e\n\u003cli data-start=\"789\" data-end=\"816\"\u003e\n\u003cstrong data-start=\"791\" data-end=\"802\"\u003eFinish:\u003c\/strong\u003e Matte Black\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-start=\"95\" data-end=\"277\"\u003e\n\u003cstrong data-start=\"97\" data-end=\"125\"\u003eAlways On, Always Ready:\u003c\/strong\u003e Most ACOG® models are battery-free, featuring a tritium\/fiber-optic illuminated reticle that automatically adjusts brightness based on available light.\u003c\/li\u003e\n\u003cli data-start=\"279\" data-end=\"461\"\u003e\n\u003cstrong data-start=\"281\" data-end=\"298\"\u003eTake Control:\u003c\/strong\u003e Select ACOG models feature user-adjustable brightness powered by a single AA battery. The 3.5x35 LED and 4x32 LED models offer six adjustable brightness settings.\u003c\/li\u003e\n\u003cli data-start=\"463\" data-end=\"600\"\u003e\n\u003cstrong data-start=\"465\" data-end=\"501\"\u003eRugged, Reliable Housing Design:\u003c\/strong\u003e Fixed-power construction minimizes moving parts, creating a nearly indestructible sighting system.\u003c\/li\u003e\n\u003cli data-start=\"602\" data-end=\"741\"\u003e\n\u003cstrong data-start=\"604\" data-end=\"632\"\u003e“Both Eyes Open” Design:\u003c\/strong\u003e Shooting with both eyes open using the Bindon Aiming Concept (BAC) enhances speed and situational awareness.\u003c\/li\u003e\n\u003cli data-start=\"743\" data-end=\"892\"\u003e\n\u003cstrong data-start=\"745\" data-end=\"769\"\u003eOutstanding Clarity:\u003c\/strong\u003e High-quality glass and multi-coated lenses maximize light transmission and deliver a clear, distortion-free field of view.\u003c\/li\u003e\n\u003cli data-start=\"894\" data-end=\"1038\"\u003e\n\u003cstrong data-start=\"896\" data-end=\"930\"\u003eExact Target Distances \u0026amp; Hold:\u003c\/strong\u003e Most ACOG models feature bullet-drop compensating and target-ranging reticles for precise, decisive aiming.\u003c\/li\u003e\n\u003cli data-start=\"1040\" data-end=\"1125\"\u003e\n\u003cstrong data-start=\"1042\" data-end=\"1060\"\u003eCombat Proven:\u003c\/strong\u003e No other magnified optic has seen more combat use than the ACOG.\u003c\/li\u003e\n\u003cli data-start=\"1127\" data-end=\"1277\"\u003e\n\u003cstrong data-start=\"1129\" data-end=\"1149\"\u003eShock-Resistant:\u003c\/strong\u003e Proven to withstand recoil from .22LR to .50 BMG and everything in between. Easily passes U.S. military drop-test requirements.\u003c\/li\u003e\n\u003cli data-start=\"1279\" data-end=\"1441\"\u003e\n\u003cstrong data-start=\"1281\" data-end=\"1296\"\u003eWaterproof:\u003c\/strong\u003e Exceeds military waterproof standards. Dry nitrogen-filled housing eliminates fogging and ensures reliable performance in extreme cold and heat.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Downloads\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cul data-pm-slice=\"3 3 []\"\u003e\n\u003cli\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1664\/1057\/files\/PML4036-1_Rev_3__ACOG_Family_Spec_Sheet_single_312ca229-528c-42c1-b700-d03a935afb43.pdf?v=1608550515\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1664\/1057\/files\/PML4036-1_Rev_3__ACOG_Family_Spec_Sheet_single_312ca229-528c-42c1-b700-d03a935afb43.pdf?v=1608550515\" rel=\"noopener\" target=\"_blank\"\u003eSpec Sheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1664\/1057\/files\/RCO_M4M150_Chevron_Reticle_Dimensions4x32.pdf?v=1608553327\" target=\"_blank\"\u003eRCO M4\/M150 Chevron Reticle\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","published_at":"2026-02-22T19:24:47-05:00","created_at":"2026-01-15T10:53:03-05:00","vendor":"Trijicon","type":"Electronic Optics","tags":["EAR","ECCN 0A504.a","Fixed Mag.","Trijicon"],"price":145831,"price_min":145831,"price_max":145831,"available":true,"price_varies":false,"compare_at_price":201200,"compare_at_price_min":201200,"compare_at_price_max":201200,"compare_at_price_varies":false,"variants":[{"id":47013343494298,"title":"Black \/ Green Chevron Reticle - M4","option1":"Black","option2":"Green Chevron Reticle - M4","option3":null,"sku":"TRTA31RCO-M150CP-G","requires_shipping":true,"taxable":false,"featured_image":{"id":47221389754522,"product_id":8739546202266,"position":2,"created_at":"2026-01-15T10:59:18-05:00","updated_at":"2026-01-15T10:59:43-05:00","alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v - HCC Tactical","width":2000,"height":2000,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419175.jpg?v=1768492783","variant_ids":[47013343494298]},"available":true,"name":"ACOG® 4x32 (ARMY RCO) M4 - Black \/ Green Chevron Reticle - M4","public_title":"Black \/ Green Chevron Reticle - M4","options":["Black","Green Chevron Reticle - M4"],"price":145831,"weight":567,"compare_at_price":201200,"inventory_quantity":6,"inventory_management":"shopify","inventory_policy":"deny","barcode":"719307303423","featured_media":{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v - HCC Tactical","id":36063163318426,"position":2,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419175.jpg?v=1768492783"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":47013343527066,"title":"Black \/ Red Chevron Reticle - M4","option1":"Black","option2":"Red Chevron Reticle - M4","option3":null,"sku":"TRTA31RCOM150CP","requires_shipping":true,"taxable":false,"featured_image":{"id":47221389525146,"product_id":8739546202266,"position":3,"created_at":"2026-01-15T10:59:18-05:00","updated_at":"2026-01-15T10:59:43-05:00","alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v2 - HCC Tactical","width":2000,"height":2000,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419165.jpg?v=1768492783","variant_ids":[47013343527066]},"available":true,"name":"ACOG® 4x32 (ARMY RCO) M4 - Black \/ Red Chevron Reticle - M4","public_title":"Black \/ Red Chevron Reticle - M4","options":["Black","Red Chevron Reticle - M4"],"price":145831,"weight":567,"compare_at_price":201200,"inventory_quantity":9,"inventory_management":"shopify","inventory_policy":"deny","barcode":"719307302242","featured_media":{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v2 - HCC Tactical","id":36063163089050,"position":3,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419165.jpg?v=1768492783"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/www.hcctac.com\/cdn\/shop\/files\/217419177.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419175.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419165.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419163_1.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419168.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419169.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419170.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419171.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419172.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419173.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419177_1.jpg?v=1768492783"],"featured_image":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419177.jpg?v=1768492783","options":["Color","Reticle"],"media":[{"alt":"Black; Triijicon - ACOG® 4x32 (ARMY RCO) M4 - HCC Tactical","id":36063163383962,"position":1,"preview_image":{"aspect_ratio":1.0,"height":854,"width":854,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419177.jpg?v=1768492783"},"aspect_ratio":1.0,"height":854,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419177.jpg?v=1768492783","width":854},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v - HCC Tactical","id":36063163318426,"position":2,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419175.jpg?v=1768492783"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419175.jpg?v=1768492783","width":2000},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v2 - HCC Tactical","id":36063163089050,"position":3,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419165.jpg?v=1768492783"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419165.jpg?v=1768492783","width":2000},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v4 - HCC Tactical","id":36063163023514,"position":4,"preview_image":{"aspect_ratio":1.0,"height":1169,"width":1169,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419163_1.jpg?v=1768492783"},"aspect_ratio":1.0,"height":1169,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419163_1.jpg?v=1768492783","width":1169},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v5 - HCC Tactical","id":36063163121818,"position":5,"preview_image":{"aspect_ratio":1.0,"height":773,"width":773,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419168.jpg?v=1768492783"},"aspect_ratio":1.0,"height":773,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419168.jpg?v=1768492783","width":773},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v6 - HCC Tactical","id":36063163154586,"position":6,"preview_image":{"aspect_ratio":1.0,"height":701,"width":701,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419169.jpg?v=1768492783"},"aspect_ratio":1.0,"height":701,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419169.jpg?v=1768492783","width":701},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v7 - HCC Tactical","id":36063163187354,"position":7,"preview_image":{"aspect_ratio":1.0,"height":917,"width":917,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419170.jpg?v=1768492783"},"aspect_ratio":1.0,"height":917,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419170.jpg?v=1768492783","width":917},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v8 - HCC Tactical","id":36063163220122,"position":8,"preview_image":{"aspect_ratio":1.0,"height":611,"width":611,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419171.jpg?v=1768492783"},"aspect_ratio":1.0,"height":611,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419171.jpg?v=1768492783","width":611},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v11 - HCC Tactical","id":36063163252890,"position":9,"preview_image":{"aspect_ratio":1.0,"height":850,"width":850,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419172.jpg?v=1768492783"},"aspect_ratio":1.0,"height":850,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419172.jpg?v=1768492783","width":850},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v22 - HCC Tactical","id":36063163285658,"position":10,"preview_image":{"aspect_ratio":1.0,"height":717,"width":717,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419173.jpg?v=1768492783"},"aspect_ratio":1.0,"height":717,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419173.jpg?v=1768492783","width":717},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v33 - HCC Tactical","id":36063163351194,"position":11,"preview_image":{"aspect_ratio":1.0,"height":854,"width":854,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419177_1.jpg?v=1768492783"},"aspect_ratio":1.0,"height":854,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419177_1.jpg?v=1768492783","width":854}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003eThe Scope That Changed Everything.\u003c\/strong\u003e There's a reason the Trijicon ACOG® (Advanced Combat Optical Gunsight) is the official medium-distance engagement optic of the Marine Corps and U.S. Special Operations Forces.\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003eThis Product is subject to ITAR\/EAR Export Controls. Please visit our ITAR\/EAR page (\u003cspan style=\"color: rgb(138, 19, 0);\"\u003e\u003cu\u003e\u003ca href=\"https:\/\/www.hcctac.com\/pages\/itar-ear-statement\" rel=\"noopener noreferrer nofollow\" style=\"color: rgb(138, 19, 0);\"\u003eclick here\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e) or \u003cspan style=\"color: rgb(138, 19, 0);\"\u003e\u003cu\u003e\u003ca href=\"https:\/\/www.hcctac.com\/pages\/contact-us\" rel=\"noopener noreferrer nofollow\" style=\"color: rgb(138, 19, 0);\"\u003eContact Us\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e for more Information.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003eGreen\/ Red Chevron Reticle, Thumbscrew Mount, Tritium \/ Fiber Optics Illuminated.\u003cbr\u003e\u003c\/strong\u003e\u003cbr\u003eThe concept was simple; a durable scope with a reticle that illuminates in low-light and no-light situations—without requiring the use of batteries.\u003c\/p\u003e\n\u003cp\u003eMore than 30 years later, the original ACOG stands the test of time as one of our most popular items. Choose from many 4x32 options, including the Official Rifle Combat Optic (RCO) of the U.S. Marine Corps.\u003c\/p\u003e\n\u003cp\u003eThe TA31RCO is an Advanced Combat Optical Gunsight (ACOG) designed for the US Army's M4 weapon system (14.5\" barrel). It incorporates dual illumination technology using a combination of fiber optics and self-luminous tritium. This allows the aiming point to always be illuminated without the use of batteries. The tritium illuminates the aiming point in total darkness, and the fiber optic self-adjusts reticle brightness during daylight according to ambient light conditions. This allows the operator to keep both eyes open while engaging targets and maintaining maximum situational awareness. Designed to the exact specifications of the United States Marine Corps, the unique reticle pattern provides quick target acquisition at close combat ranges while providing enhanced target identification and hit probability out to 800 meters utilizing the Bullet Drop Compensator. No tools are needed for windage and elevation adjustments because the TA31RCO features external adjusters, making it waterproof up to 11m without the caps. Mounting bosses are integrated into the housing by the eyepiece to allow the easy addition of a Trijicon RMR® (not included).\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 3 []\"\u003e\u003cstrong\u003eSPECIFICATIONS:\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-pm-slice=\"3 3 []\"\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-start=\"103\" data-end=\"137\"\u003e\n\u003cstrong data-start=\"105\" data-end=\"116\"\u003eWeight:\u003c\/strong\u003e 16.2 oz (459.26 g)\u003c\/li\u003e\n\u003cli data-start=\"138\" data-end=\"163\"\u003e\n\u003cstrong data-start=\"140\" data-end=\"158\"\u003eMagnification:\u003c\/strong\u003e 4x\u003c\/li\u003e\n\u003cli data-start=\"164\" data-end=\"193\"\u003e\n\u003cstrong data-start=\"166\" data-end=\"185\"\u003eObjective Size:\u003c\/strong\u003e 32 mm\u003c\/li\u003e\n\u003cli data-start=\"194\" data-end=\"226\"\u003e\n\u003cstrong data-start=\"196\" data-end=\"216\"\u003eReticle Pattern:\u003c\/strong\u003e Chevron\u003c\/li\u003e\n\u003cli data-start=\"227\" data-end=\"265\"\u003e\n\u003cstrong data-start=\"229\" data-end=\"251\"\u003eDay Reticle Color:\u003c\/strong\u003e Red \/ Green\u003c\/li\u003e\n\u003cli data-start=\"266\" data-end=\"306\"\u003e\n\u003cstrong data-start=\"268\" data-end=\"292\"\u003eNight Reticle Color:\u003c\/strong\u003e Red \/ Green\u003c\/li\u003e\n\u003cli data-start=\"307\" data-end=\"350\"\u003e\n\u003cstrong data-start=\"309\" data-end=\"344\"\u003eBullet Drop Compensating (BDC):\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli data-start=\"351\" data-end=\"390\"\u003e\n\u003cstrong data-start=\"353\" data-end=\"365\"\u003eCaliber:\u003c\/strong\u003e 0.223 (14.5 in barrel)\u003c\/li\u003e\n\u003cli data-start=\"391\" data-end=\"431\"\u003e\n\u003cstrong data-start=\"393\" data-end=\"425\"\u003eBindon Aiming Concept (BAC):\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli data-start=\"432\" data-end=\"483\"\u003e\n\u003cstrong data-start=\"434\" data-end=\"458\"\u003eIllumination Source:\u003c\/strong\u003e Fibre Optics \u0026amp; Tritium\u003c\/li\u003e\n\u003cli data-start=\"484\" data-end=\"528\"\u003e\n\u003cstrong data-start=\"486\" data-end=\"503\"\u003ePower Source:\u003c\/strong\u003e Fibre Optics \u0026amp; Tritium\u003c\/li\u003e\n\u003cli data-start=\"529\" data-end=\"565\"\u003e\n\u003cstrong data-start=\"531\" data-end=\"546\"\u003eEye Relief:\u003c\/strong\u003e 1.5 in (38.1 mm)\u003c\/li\u003e\n\u003cli data-start=\"566\" data-end=\"603\"\u003e\n\u003cstrong data-start=\"568\" data-end=\"583\"\u003eExit Pupil:\u003c\/strong\u003e 0.32 in (8.13 mm)\u003c\/li\u003e\n\u003cli data-start=\"604\" data-end=\"639\"\u003e\n\u003cstrong data-start=\"606\" data-end=\"634\"\u003eField of View (Degrees):\u003c\/strong\u003e 7°\u003c\/li\u003e\n\u003cli data-start=\"640\" data-end=\"698\"\u003e\n\u003cstrong data-start=\"642\" data-end=\"660\"\u003eField of View:\u003c\/strong\u003e 36.8 ft @ 100 yds (12.27 m @ 100 m)\u003c\/li\u003e\n\u003cli data-start=\"699\" data-end=\"745\"\u003e\n\u003cstrong data-start=\"701\" data-end=\"711\"\u003eMount:\u003c\/strong\u003e Flattop Thumbscrew Mount (TA51)\u003c\/li\u003e\n\u003cli data-start=\"746\" data-end=\"788\"\u003e\n\u003cstrong data-start=\"748\" data-end=\"769\"\u003eHousing Material:\u003c\/strong\u003e Forged Aluminium\u003c\/li\u003e\n\u003cli data-start=\"789\" data-end=\"816\"\u003e\n\u003cstrong data-start=\"791\" data-end=\"802\"\u003eFinish:\u003c\/strong\u003e Matte Black\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-start=\"95\" data-end=\"277\"\u003e\n\u003cstrong data-start=\"97\" data-end=\"125\"\u003eAlways On, Always Ready:\u003c\/strong\u003e Most ACOG® models are battery-free, featuring a tritium\/fiber-optic illuminated reticle that automatically adjusts brightness based on available light.\u003c\/li\u003e\n\u003cli data-start=\"279\" data-end=\"461\"\u003e\n\u003cstrong data-start=\"281\" data-end=\"298\"\u003eTake Control:\u003c\/strong\u003e Select ACOG models feature user-adjustable brightness powered by a single AA battery. The 3.5x35 LED and 4x32 LED models offer six adjustable brightness settings.\u003c\/li\u003e\n\u003cli data-start=\"463\" data-end=\"600\"\u003e\n\u003cstrong data-start=\"465\" data-end=\"501\"\u003eRugged, Reliable Housing Design:\u003c\/strong\u003e Fixed-power construction minimizes moving parts, creating a nearly indestructible sighting system.\u003c\/li\u003e\n\u003cli data-start=\"602\" data-end=\"741\"\u003e\n\u003cstrong data-start=\"604\" data-end=\"632\"\u003e“Both Eyes Open” Design:\u003c\/strong\u003e Shooting with both eyes open using the Bindon Aiming Concept (BAC) enhances speed and situational awareness.\u003c\/li\u003e\n\u003cli data-start=\"743\" data-end=\"892\"\u003e\n\u003cstrong data-start=\"745\" data-end=\"769\"\u003eOutstanding Clarity:\u003c\/strong\u003e High-quality glass and multi-coated lenses maximize light transmission and deliver a clear, distortion-free field of view.\u003c\/li\u003e\n\u003cli data-start=\"894\" data-end=\"1038\"\u003e\n\u003cstrong data-start=\"896\" data-end=\"930\"\u003eExact Target Distances \u0026amp; Hold:\u003c\/strong\u003e Most ACOG models feature bullet-drop compensating and target-ranging reticles for precise, decisive aiming.\u003c\/li\u003e\n\u003cli data-start=\"1040\" data-end=\"1125\"\u003e\n\u003cstrong data-start=\"1042\" data-end=\"1060\"\u003eCombat Proven:\u003c\/strong\u003e No other magnified optic has seen more combat use than the ACOG.\u003c\/li\u003e\n\u003cli data-start=\"1127\" data-end=\"1277\"\u003e\n\u003cstrong data-start=\"1129\" data-end=\"1149\"\u003eShock-Resistant:\u003c\/strong\u003e Proven to withstand recoil from .22LR to .50 BMG and everything in between. Easily passes U.S. military drop-test requirements.\u003c\/li\u003e\n\u003cli data-start=\"1279\" data-end=\"1441\"\u003e\n\u003cstrong data-start=\"1281\" data-end=\"1296\"\u003eWaterproof:\u003c\/strong\u003e Exceeds military waterproof standards. Dry nitrogen-filled housing eliminates fogging and ensures reliable performance in extreme cold and heat.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Downloads\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cul data-pm-slice=\"3 3 []\"\u003e\n\u003cli\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1664\/1057\/files\/PML4036-1_Rev_3__ACOG_Family_Spec_Sheet_single_312ca229-528c-42c1-b700-d03a935afb43.pdf?v=1608550515\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1664\/1057\/files\/PML4036-1_Rev_3__ACOG_Family_Spec_Sheet_single_312ca229-528c-42c1-b700-d03a935afb43.pdf?v=1608550515\" rel=\"noopener\" target=\"_blank\"\u003eSpec Sheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1664\/1057\/files\/RCO_M4M150_Chevron_Reticle_Dimensions4x32.pdf?v=1608553327\" target=\"_blank\"\u003eRCO M4\/M150 Chevron Reticle\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e"}
        {"id":8739546202266,"title":"ACOG® 4x32 (ARMY RCO) M4","handle":"acog-4x32-army-rco-m4","description":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003eThe Scope That Changed Everything.\u003c\/strong\u003e There's a reason the Trijicon ACOG® (Advanced Combat Optical Gunsight) is the official medium-distance engagement optic of the Marine Corps and U.S. Special Operations Forces.\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003eThis Product is subject to ITAR\/EAR Export Controls. Please visit our ITAR\/EAR page (\u003cspan style=\"color: rgb(138, 19, 0);\"\u003e\u003cu\u003e\u003ca href=\"https:\/\/www.hcctac.com\/pages\/itar-ear-statement\" rel=\"noopener noreferrer nofollow\" style=\"color: rgb(138, 19, 0);\"\u003eclick here\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e) or \u003cspan style=\"color: rgb(138, 19, 0);\"\u003e\u003cu\u003e\u003ca href=\"https:\/\/www.hcctac.com\/pages\/contact-us\" rel=\"noopener noreferrer nofollow\" style=\"color: rgb(138, 19, 0);\"\u003eContact Us\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e for more Information.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003eGreen\/ Red Chevron Reticle, Thumbscrew Mount, Tritium \/ Fiber Optics Illuminated.\u003cbr\u003e\u003c\/strong\u003e\u003cbr\u003eThe concept was simple; a durable scope with a reticle that illuminates in low-light and no-light situations—without requiring the use of batteries.\u003c\/p\u003e\n\u003cp\u003eMore than 30 years later, the original ACOG stands the test of time as one of our most popular items. Choose from many 4x32 options, including the Official Rifle Combat Optic (RCO) of the U.S. Marine Corps.\u003c\/p\u003e\n\u003cp\u003eThe TA31RCO is an Advanced Combat Optical Gunsight (ACOG) designed for the US Army's M4 weapon system (14.5\" barrel). It incorporates dual illumination technology using a combination of fiber optics and self-luminous tritium. This allows the aiming point to always be illuminated without the use of batteries. The tritium illuminates the aiming point in total darkness, and the fiber optic self-adjusts reticle brightness during daylight according to ambient light conditions. This allows the operator to keep both eyes open while engaging targets and maintaining maximum situational awareness. Designed to the exact specifications of the United States Marine Corps, the unique reticle pattern provides quick target acquisition at close combat ranges while providing enhanced target identification and hit probability out to 800 meters utilizing the Bullet Drop Compensator. No tools are needed for windage and elevation adjustments because the TA31RCO features external adjusters, making it waterproof up to 11m without the caps. Mounting bosses are integrated into the housing by the eyepiece to allow the easy addition of a Trijicon RMR® (not included).\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 3 []\"\u003e\u003cstrong\u003eSPECIFICATIONS:\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-pm-slice=\"3 3 []\"\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-start=\"103\" data-end=\"137\"\u003e\n\u003cstrong data-start=\"105\" data-end=\"116\"\u003eWeight:\u003c\/strong\u003e 16.2 oz (459.26 g)\u003c\/li\u003e\n\u003cli data-start=\"138\" data-end=\"163\"\u003e\n\u003cstrong data-start=\"140\" data-end=\"158\"\u003eMagnification:\u003c\/strong\u003e 4x\u003c\/li\u003e\n\u003cli data-start=\"164\" data-end=\"193\"\u003e\n\u003cstrong data-start=\"166\" data-end=\"185\"\u003eObjective Size:\u003c\/strong\u003e 32 mm\u003c\/li\u003e\n\u003cli data-start=\"194\" data-end=\"226\"\u003e\n\u003cstrong data-start=\"196\" data-end=\"216\"\u003eReticle Pattern:\u003c\/strong\u003e Chevron\u003c\/li\u003e\n\u003cli data-start=\"227\" data-end=\"265\"\u003e\n\u003cstrong data-start=\"229\" data-end=\"251\"\u003eDay Reticle Color:\u003c\/strong\u003e Red \/ Green\u003c\/li\u003e\n\u003cli data-start=\"266\" data-end=\"306\"\u003e\n\u003cstrong data-start=\"268\" data-end=\"292\"\u003eNight Reticle Color:\u003c\/strong\u003e Red \/ Green\u003c\/li\u003e\n\u003cli data-start=\"307\" data-end=\"350\"\u003e\n\u003cstrong data-start=\"309\" data-end=\"344\"\u003eBullet Drop Compensating (BDC):\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli data-start=\"351\" data-end=\"390\"\u003e\n\u003cstrong data-start=\"353\" data-end=\"365\"\u003eCaliber:\u003c\/strong\u003e 0.223 (14.5 in barrel)\u003c\/li\u003e\n\u003cli data-start=\"391\" data-end=\"431\"\u003e\n\u003cstrong data-start=\"393\" data-end=\"425\"\u003eBindon Aiming Concept (BAC):\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli data-start=\"432\" data-end=\"483\"\u003e\n\u003cstrong data-start=\"434\" data-end=\"458\"\u003eIllumination Source:\u003c\/strong\u003e Fibre Optics \u0026amp; Tritium\u003c\/li\u003e\n\u003cli data-start=\"484\" data-end=\"528\"\u003e\n\u003cstrong data-start=\"486\" data-end=\"503\"\u003ePower Source:\u003c\/strong\u003e Fibre Optics \u0026amp; Tritium\u003c\/li\u003e\n\u003cli data-start=\"529\" data-end=\"565\"\u003e\n\u003cstrong data-start=\"531\" data-end=\"546\"\u003eEye Relief:\u003c\/strong\u003e 1.5 in (38.1 mm)\u003c\/li\u003e\n\u003cli data-start=\"566\" data-end=\"603\"\u003e\n\u003cstrong data-start=\"568\" data-end=\"583\"\u003eExit Pupil:\u003c\/strong\u003e 0.32 in (8.13 mm)\u003c\/li\u003e\n\u003cli data-start=\"604\" data-end=\"639\"\u003e\n\u003cstrong data-start=\"606\" data-end=\"634\"\u003eField of View (Degrees):\u003c\/strong\u003e 7°\u003c\/li\u003e\n\u003cli data-start=\"640\" data-end=\"698\"\u003e\n\u003cstrong data-start=\"642\" data-end=\"660\"\u003eField of View:\u003c\/strong\u003e 36.8 ft @ 100 yds (12.27 m @ 100 m)\u003c\/li\u003e\n\u003cli data-start=\"699\" data-end=\"745\"\u003e\n\u003cstrong data-start=\"701\" data-end=\"711\"\u003eMount:\u003c\/strong\u003e Flattop Thumbscrew Mount (TA51)\u003c\/li\u003e\n\u003cli data-start=\"746\" data-end=\"788\"\u003e\n\u003cstrong data-start=\"748\" data-end=\"769\"\u003eHousing Material:\u003c\/strong\u003e Forged Aluminium\u003c\/li\u003e\n\u003cli data-start=\"789\" data-end=\"816\"\u003e\n\u003cstrong data-start=\"791\" data-end=\"802\"\u003eFinish:\u003c\/strong\u003e Matte Black\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-start=\"95\" data-end=\"277\"\u003e\n\u003cstrong data-start=\"97\" data-end=\"125\"\u003eAlways On, Always Ready:\u003c\/strong\u003e Most ACOG® models are battery-free, featuring a tritium\/fiber-optic illuminated reticle that automatically adjusts brightness based on available light.\u003c\/li\u003e\n\u003cli data-start=\"279\" data-end=\"461\"\u003e\n\u003cstrong data-start=\"281\" data-end=\"298\"\u003eTake Control:\u003c\/strong\u003e Select ACOG models feature user-adjustable brightness powered by a single AA battery. The 3.5x35 LED and 4x32 LED models offer six adjustable brightness settings.\u003c\/li\u003e\n\u003cli data-start=\"463\" data-end=\"600\"\u003e\n\u003cstrong data-start=\"465\" data-end=\"501\"\u003eRugged, Reliable Housing Design:\u003c\/strong\u003e Fixed-power construction minimizes moving parts, creating a nearly indestructible sighting system.\u003c\/li\u003e\n\u003cli data-start=\"602\" data-end=\"741\"\u003e\n\u003cstrong data-start=\"604\" data-end=\"632\"\u003e“Both Eyes Open” Design:\u003c\/strong\u003e Shooting with both eyes open using the Bindon Aiming Concept (BAC) enhances speed and situational awareness.\u003c\/li\u003e\n\u003cli data-start=\"743\" data-end=\"892\"\u003e\n\u003cstrong data-start=\"745\" data-end=\"769\"\u003eOutstanding Clarity:\u003c\/strong\u003e High-quality glass and multi-coated lenses maximize light transmission and deliver a clear, distortion-free field of view.\u003c\/li\u003e\n\u003cli data-start=\"894\" data-end=\"1038\"\u003e\n\u003cstrong data-start=\"896\" data-end=\"930\"\u003eExact Target Distances \u0026amp; Hold:\u003c\/strong\u003e Most ACOG models feature bullet-drop compensating and target-ranging reticles for precise, decisive aiming.\u003c\/li\u003e\n\u003cli data-start=\"1040\" data-end=\"1125\"\u003e\n\u003cstrong data-start=\"1042\" data-end=\"1060\"\u003eCombat Proven:\u003c\/strong\u003e No other magnified optic has seen more combat use than the ACOG.\u003c\/li\u003e\n\u003cli data-start=\"1127\" data-end=\"1277\"\u003e\n\u003cstrong data-start=\"1129\" data-end=\"1149\"\u003eShock-Resistant:\u003c\/strong\u003e Proven to withstand recoil from .22LR to .50 BMG and everything in between. Easily passes U.S. military drop-test requirements.\u003c\/li\u003e\n\u003cli data-start=\"1279\" data-end=\"1441\"\u003e\n\u003cstrong data-start=\"1281\" data-end=\"1296\"\u003eWaterproof:\u003c\/strong\u003e Exceeds military waterproof standards. Dry nitrogen-filled housing eliminates fogging and ensures reliable performance in extreme cold and heat.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Downloads\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cul data-pm-slice=\"3 3 []\"\u003e\n\u003cli\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1664\/1057\/files\/PML4036-1_Rev_3__ACOG_Family_Spec_Sheet_single_312ca229-528c-42c1-b700-d03a935afb43.pdf?v=1608550515\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1664\/1057\/files\/PML4036-1_Rev_3__ACOG_Family_Spec_Sheet_single_312ca229-528c-42c1-b700-d03a935afb43.pdf?v=1608550515\" rel=\"noopener\" target=\"_blank\"\u003eSpec Sheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1664\/1057\/files\/RCO_M4M150_Chevron_Reticle_Dimensions4x32.pdf?v=1608553327\" target=\"_blank\"\u003eRCO M4\/M150 Chevron Reticle\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","published_at":"2026-02-22T19:24:47-05:00","created_at":"2026-01-15T10:53:03-05:00","vendor":"Trijicon","type":"Electronic Optics","tags":["EAR","ECCN 0A504.a","Fixed Mag.","Trijicon"],"price":145831,"price_min":145831,"price_max":145831,"available":true,"price_varies":false,"compare_at_price":201200,"compare_at_price_min":201200,"compare_at_price_max":201200,"compare_at_price_varies":false,"variants":[{"id":47013343494298,"title":"Black \/ Green Chevron Reticle - M4","option1":"Black","option2":"Green Chevron Reticle - M4","option3":null,"sku":"TRTA31RCO-M150CP-G","requires_shipping":true,"taxable":false,"featured_image":{"id":47221389754522,"product_id":8739546202266,"position":2,"created_at":"2026-01-15T10:59:18-05:00","updated_at":"2026-01-15T10:59:43-05:00","alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v - HCC Tactical","width":2000,"height":2000,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419175.jpg?v=1768492783","variant_ids":[47013343494298]},"available":true,"name":"ACOG® 4x32 (ARMY RCO) M4 - Black \/ Green Chevron Reticle - M4","public_title":"Black \/ Green Chevron Reticle - M4","options":["Black","Green Chevron Reticle - M4"],"price":145831,"weight":567,"compare_at_price":201200,"inventory_quantity":6,"inventory_management":"shopify","inventory_policy":"deny","barcode":"719307303423","featured_media":{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v - HCC Tactical","id":36063163318426,"position":2,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419175.jpg?v=1768492783"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}},{"id":47013343527066,"title":"Black \/ Red Chevron Reticle - M4","option1":"Black","option2":"Red Chevron Reticle - M4","option3":null,"sku":"TRTA31RCOM150CP","requires_shipping":true,"taxable":false,"featured_image":{"id":47221389525146,"product_id":8739546202266,"position":3,"created_at":"2026-01-15T10:59:18-05:00","updated_at":"2026-01-15T10:59:43-05:00","alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v2 - HCC Tactical","width":2000,"height":2000,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419165.jpg?v=1768492783","variant_ids":[47013343527066]},"available":true,"name":"ACOG® 4x32 (ARMY RCO) M4 - Black \/ Red Chevron Reticle - M4","public_title":"Black \/ Red Chevron Reticle - M4","options":["Black","Red Chevron Reticle - M4"],"price":145831,"weight":567,"compare_at_price":201200,"inventory_quantity":9,"inventory_management":"shopify","inventory_policy":"deny","barcode":"719307302242","featured_media":{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v2 - HCC Tactical","id":36063163089050,"position":3,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419165.jpg?v=1768492783"}},"requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["\/\/www.hcctac.com\/cdn\/shop\/files\/217419177.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419175.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419165.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419163_1.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419168.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419169.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419170.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419171.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419172.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419173.jpg?v=1768492783","\/\/www.hcctac.com\/cdn\/shop\/files\/217419177_1.jpg?v=1768492783"],"featured_image":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419177.jpg?v=1768492783","options":["Color","Reticle"],"media":[{"alt":"Black; Triijicon - ACOG® 4x32 (ARMY RCO) M4 - HCC Tactical","id":36063163383962,"position":1,"preview_image":{"aspect_ratio":1.0,"height":854,"width":854,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419177.jpg?v=1768492783"},"aspect_ratio":1.0,"height":854,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419177.jpg?v=1768492783","width":854},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v - HCC Tactical","id":36063163318426,"position":2,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419175.jpg?v=1768492783"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419175.jpg?v=1768492783","width":2000},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v2 - HCC Tactical","id":36063163089050,"position":3,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419165.jpg?v=1768492783"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419165.jpg?v=1768492783","width":2000},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v4 - HCC Tactical","id":36063163023514,"position":4,"preview_image":{"aspect_ratio":1.0,"height":1169,"width":1169,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419163_1.jpg?v=1768492783"},"aspect_ratio":1.0,"height":1169,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419163_1.jpg?v=1768492783","width":1169},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v5 - HCC Tactical","id":36063163121818,"position":5,"preview_image":{"aspect_ratio":1.0,"height":773,"width":773,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419168.jpg?v=1768492783"},"aspect_ratio":1.0,"height":773,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419168.jpg?v=1768492783","width":773},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v6 - HCC Tactical","id":36063163154586,"position":6,"preview_image":{"aspect_ratio":1.0,"height":701,"width":701,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419169.jpg?v=1768492783"},"aspect_ratio":1.0,"height":701,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419169.jpg?v=1768492783","width":701},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v7 - HCC Tactical","id":36063163187354,"position":7,"preview_image":{"aspect_ratio":1.0,"height":917,"width":917,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419170.jpg?v=1768492783"},"aspect_ratio":1.0,"height":917,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419170.jpg?v=1768492783","width":917},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v8 - HCC Tactical","id":36063163220122,"position":8,"preview_image":{"aspect_ratio":1.0,"height":611,"width":611,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419171.jpg?v=1768492783"},"aspect_ratio":1.0,"height":611,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419171.jpg?v=1768492783","width":611},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v11 - HCC Tactical","id":36063163252890,"position":9,"preview_image":{"aspect_ratio":1.0,"height":850,"width":850,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419172.jpg?v=1768492783"},"aspect_ratio":1.0,"height":850,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419172.jpg?v=1768492783","width":850},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v22 - HCC Tactical","id":36063163285658,"position":10,"preview_image":{"aspect_ratio":1.0,"height":717,"width":717,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419173.jpg?v=1768492783"},"aspect_ratio":1.0,"height":717,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419173.jpg?v=1768492783","width":717},{"alt":"Triijicon - ACOG® 4x32 (ARMY RCO) M4 - v33 - HCC Tactical","id":36063163351194,"position":11,"preview_image":{"aspect_ratio":1.0,"height":854,"width":854,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419177_1.jpg?v=1768492783"},"aspect_ratio":1.0,"height":854,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/217419177_1.jpg?v=1768492783","width":854}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003eThe Scope That Changed Everything.\u003c\/strong\u003e There's a reason the Trijicon ACOG® (Advanced Combat Optical Gunsight) is the official medium-distance engagement optic of the Marine Corps and U.S. Special Operations Forces.\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003eThis Product is subject to ITAR\/EAR Export Controls. Please visit our ITAR\/EAR page (\u003cspan style=\"color: rgb(138, 19, 0);\"\u003e\u003cu\u003e\u003ca href=\"https:\/\/www.hcctac.com\/pages\/itar-ear-statement\" rel=\"noopener noreferrer nofollow\" style=\"color: rgb(138, 19, 0);\"\u003eclick here\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e) or \u003cspan style=\"color: rgb(138, 19, 0);\"\u003e\u003cu\u003e\u003ca href=\"https:\/\/www.hcctac.com\/pages\/contact-us\" rel=\"noopener noreferrer nofollow\" style=\"color: rgb(138, 19, 0);\"\u003eContact Us\u003c\/a\u003e\u003c\/u\u003e\u003c\/span\u003e for more Information.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003eGreen\/ Red Chevron Reticle, Thumbscrew Mount, Tritium \/ Fiber Optics Illuminated.\u003cbr\u003e\u003c\/strong\u003e\u003cbr\u003eThe concept was simple; a durable scope with a reticle that illuminates in low-light and no-light situations—without requiring the use of batteries.\u003c\/p\u003e\n\u003cp\u003eMore than 30 years later, the original ACOG stands the test of time as one of our most popular items. Choose from many 4x32 options, including the Official Rifle Combat Optic (RCO) of the U.S. Marine Corps.\u003c\/p\u003e\n\u003cp\u003eThe TA31RCO is an Advanced Combat Optical Gunsight (ACOG) designed for the US Army's M4 weapon system (14.5\" barrel). It incorporates dual illumination technology using a combination of fiber optics and self-luminous tritium. This allows the aiming point to always be illuminated without the use of batteries. The tritium illuminates the aiming point in total darkness, and the fiber optic self-adjusts reticle brightness during daylight according to ambient light conditions. This allows the operator to keep both eyes open while engaging targets and maintaining maximum situational awareness. Designed to the exact specifications of the United States Marine Corps, the unique reticle pattern provides quick target acquisition at close combat ranges while providing enhanced target identification and hit probability out to 800 meters utilizing the Bullet Drop Compensator. No tools are needed for windage and elevation adjustments because the TA31RCO features external adjusters, making it waterproof up to 11m without the caps. Mounting bosses are integrated into the housing by the eyepiece to allow the easy addition of a Trijicon RMR® (not included).\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 3 []\"\u003e\u003cstrong\u003eSPECIFICATIONS:\u003cbr\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-pm-slice=\"3 3 []\"\u003e\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-start=\"103\" data-end=\"137\"\u003e\n\u003cstrong data-start=\"105\" data-end=\"116\"\u003eWeight:\u003c\/strong\u003e 16.2 oz (459.26 g)\u003c\/li\u003e\n\u003cli data-start=\"138\" data-end=\"163\"\u003e\n\u003cstrong data-start=\"140\" data-end=\"158\"\u003eMagnification:\u003c\/strong\u003e 4x\u003c\/li\u003e\n\u003cli data-start=\"164\" data-end=\"193\"\u003e\n\u003cstrong data-start=\"166\" data-end=\"185\"\u003eObjective Size:\u003c\/strong\u003e 32 mm\u003c\/li\u003e\n\u003cli data-start=\"194\" data-end=\"226\"\u003e\n\u003cstrong data-start=\"196\" data-end=\"216\"\u003eReticle Pattern:\u003c\/strong\u003e Chevron\u003c\/li\u003e\n\u003cli data-start=\"227\" data-end=\"265\"\u003e\n\u003cstrong data-start=\"229\" data-end=\"251\"\u003eDay Reticle Color:\u003c\/strong\u003e Red \/ Green\u003c\/li\u003e\n\u003cli data-start=\"266\" data-end=\"306\"\u003e\n\u003cstrong data-start=\"268\" data-end=\"292\"\u003eNight Reticle Color:\u003c\/strong\u003e Red \/ Green\u003c\/li\u003e\n\u003cli data-start=\"307\" data-end=\"350\"\u003e\n\u003cstrong data-start=\"309\" data-end=\"344\"\u003eBullet Drop Compensating (BDC):\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli data-start=\"351\" data-end=\"390\"\u003e\n\u003cstrong data-start=\"353\" data-end=\"365\"\u003eCaliber:\u003c\/strong\u003e 0.223 (14.5 in barrel)\u003c\/li\u003e\n\u003cli data-start=\"391\" data-end=\"431\"\u003e\n\u003cstrong data-start=\"393\" data-end=\"425\"\u003eBindon Aiming Concept (BAC):\u003c\/strong\u003e Yes\u003c\/li\u003e\n\u003cli data-start=\"432\" data-end=\"483\"\u003e\n\u003cstrong data-start=\"434\" data-end=\"458\"\u003eIllumination Source:\u003c\/strong\u003e Fibre Optics \u0026amp; Tritium\u003c\/li\u003e\n\u003cli data-start=\"484\" data-end=\"528\"\u003e\n\u003cstrong data-start=\"486\" data-end=\"503\"\u003ePower Source:\u003c\/strong\u003e Fibre Optics \u0026amp; Tritium\u003c\/li\u003e\n\u003cli data-start=\"529\" data-end=\"565\"\u003e\n\u003cstrong data-start=\"531\" data-end=\"546\"\u003eEye Relief:\u003c\/strong\u003e 1.5 in (38.1 mm)\u003c\/li\u003e\n\u003cli data-start=\"566\" data-end=\"603\"\u003e\n\u003cstrong data-start=\"568\" data-end=\"583\"\u003eExit Pupil:\u003c\/strong\u003e 0.32 in (8.13 mm)\u003c\/li\u003e\n\u003cli data-start=\"604\" data-end=\"639\"\u003e\n\u003cstrong data-start=\"606\" data-end=\"634\"\u003eField of View (Degrees):\u003c\/strong\u003e 7°\u003c\/li\u003e\n\u003cli data-start=\"640\" data-end=\"698\"\u003e\n\u003cstrong data-start=\"642\" data-end=\"660\"\u003eField of View:\u003c\/strong\u003e 36.8 ft @ 100 yds (12.27 m @ 100 m)\u003c\/li\u003e\n\u003cli data-start=\"699\" data-end=\"745\"\u003e\n\u003cstrong data-start=\"701\" data-end=\"711\"\u003eMount:\u003c\/strong\u003e Flattop Thumbscrew Mount (TA51)\u003c\/li\u003e\n\u003cli data-start=\"746\" data-end=\"788\"\u003e\n\u003cstrong data-start=\"748\" data-end=\"769\"\u003eHousing Material:\u003c\/strong\u003e Forged Aluminium\u003c\/li\u003e\n\u003cli data-start=\"789\" data-end=\"816\"\u003e\n\u003cstrong data-start=\"791\" data-end=\"802\"\u003eFinish:\u003c\/strong\u003e Matte Black\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eFEATURES:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli data-start=\"95\" data-end=\"277\"\u003e\n\u003cstrong data-start=\"97\" data-end=\"125\"\u003eAlways On, Always Ready:\u003c\/strong\u003e Most ACOG® models are battery-free, featuring a tritium\/fiber-optic illuminated reticle that automatically adjusts brightness based on available light.\u003c\/li\u003e\n\u003cli data-start=\"279\" data-end=\"461\"\u003e\n\u003cstrong data-start=\"281\" data-end=\"298\"\u003eTake Control:\u003c\/strong\u003e Select ACOG models feature user-adjustable brightness powered by a single AA battery. The 3.5x35 LED and 4x32 LED models offer six adjustable brightness settings.\u003c\/li\u003e\n\u003cli data-start=\"463\" data-end=\"600\"\u003e\n\u003cstrong data-start=\"465\" data-end=\"501\"\u003eRugged, Reliable Housing Design:\u003c\/strong\u003e Fixed-power construction minimizes moving parts, creating a nearly indestructible sighting system.\u003c\/li\u003e\n\u003cli data-start=\"602\" data-end=\"741\"\u003e\n\u003cstrong data-start=\"604\" data-end=\"632\"\u003e“Both Eyes Open” Design:\u003c\/strong\u003e Shooting with both eyes open using the Bindon Aiming Concept (BAC) enhances speed and situational awareness.\u003c\/li\u003e\n\u003cli data-start=\"743\" data-end=\"892\"\u003e\n\u003cstrong data-start=\"745\" data-end=\"769\"\u003eOutstanding Clarity:\u003c\/strong\u003e High-quality glass and multi-coated lenses maximize light transmission and deliver a clear, distortion-free field of view.\u003c\/li\u003e\n\u003cli data-start=\"894\" data-end=\"1038\"\u003e\n\u003cstrong data-start=\"896\" data-end=\"930\"\u003eExact Target Distances \u0026amp; Hold:\u003c\/strong\u003e Most ACOG models feature bullet-drop compensating and target-ranging reticles for precise, decisive aiming.\u003c\/li\u003e\n\u003cli data-start=\"1040\" data-end=\"1125\"\u003e\n\u003cstrong data-start=\"1042\" data-end=\"1060\"\u003eCombat Proven:\u003c\/strong\u003e No other magnified optic has seen more combat use than the ACOG.\u003c\/li\u003e\n\u003cli data-start=\"1127\" data-end=\"1277\"\u003e\n\u003cstrong data-start=\"1129\" data-end=\"1149\"\u003eShock-Resistant:\u003c\/strong\u003e Proven to withstand recoil from .22LR to .50 BMG and everything in between. Easily passes U.S. military drop-test requirements.\u003c\/li\u003e\n\u003cli data-start=\"1279\" data-end=\"1441\"\u003e\n\u003cstrong data-start=\"1281\" data-end=\"1296\"\u003eWaterproof:\u003c\/strong\u003e Exceeds military waterproof standards. Dry nitrogen-filled housing eliminates fogging and ensures reliable performance in extreme cold and heat.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eProduct Downloads\u003cbr\u003e\n\u003c\/h4\u003e\n\u003cul data-pm-slice=\"3 3 []\"\u003e\n\u003cli\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1664\/1057\/files\/PML4036-1_Rev_3__ACOG_Family_Spec_Sheet_single_312ca229-528c-42c1-b700-d03a935afb43.pdf?v=1608550515\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1664\/1057\/files\/PML4036-1_Rev_3__ACOG_Family_Spec_Sheet_single_312ca229-528c-42c1-b700-d03a935afb43.pdf?v=1608550515\" rel=\"noopener\" target=\"_blank\"\u003eSpec Sheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/1664\/1057\/files\/RCO_M4M150_Chevron_Reticle_Dimensions4x32.pdf?v=1608553327\" target=\"_blank\"\u003eRCO M4\/M150 Chevron Reticle\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e"}