{"id":8797552312474,"title":"509T QD Mount","handle":"holosun-509t-qd-mount-1","description":"\u003cp\u003e\u003cspan\u003eEngineered specifically for the Holosun 509T, this precision QD mount delivers versatile mounting solutions across AR pistols and compact weapon platforms. The single-piece construction combines lightweight performance with robust 6061 T6 aluminum construction, finished in hard coat T3 Mil-Spec anodize for durability. Choose between standard or TAC lever configurations to match your operational needs. Dual co-witness and lower 1\/3 co-witness height options provide flexible sight picture alignment, while the patented QD Auto Lock™ Lever system accommodates both in-spec and out-of-spec rail systems for reliable, repeatable mounting across diverse platforms.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul itemprop=\"positiveNotes\" itemscope=\"\" itemtype=\"http:\/\/schema.org\/ItemList\"\u003e\n\u003cli itemprop=\"itemListElement\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/ListItem\"\u003e\u003cspan itemprop=\"name\"\u003eThe AD-509T QD mount features the Patented QD Auto Lock™ Lever system.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli itemprop=\"itemListElement\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/ListItem\"\u003e\u003cspan itemprop=\"name\"\u003eDoes not require proprietary tools for adjustment.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli itemprop=\"itemListElement\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/ListItem\"\u003e\u003cspan itemprop=\"name\"\u003eCan be adjusted with your finger or a flat blade screwdriver.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli itemprop=\"itemListElement\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/ListItem\"\u003e\u003cspan itemprop=\"name\"\u003eLever can be configured to lock to the front or the rear.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli itemprop=\"itemListElement\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/ListItem\"\u003e\u003cspan itemprop=\"name\"\u003eSuperior clamping surface to insure maximum rail engagement.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli itemprop=\"itemListElement\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/ListItem\"\u003e\u003cspan itemprop=\"name\"\u003e30% lighter than our standard mounts.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","published_at":"2026-03-09T11:41:40-04:00","created_at":"2026-02-18T17:02:21-05:00","vendor":"American Defense Mfg","type":"Optic Mounts","tags":["American Defense Mfg","e-optic mounts"],"price":10324,"price_min":10324,"price_max":10898,"available":true,"price_varies":true,"compare_at_price":10868,"compare_at_price_min":10868,"compare_at_price_max":11471,"compare_at_price_varies":true,"variants":[{"id":47474067669146,"title":"Black \/ Low","option1":"Black","option2":"Low","option3":null,"sku":"ADMAD-509T-L-STD","requires_shipping":true,"taxable":true,"featured_image":{"id":47795463913626,"product_id":8797552312474,"position":5,"created_at":"2026-02-23T11:32:03-05:00","updated_at":"2026-03-11T13:08:36-04:00","alt":"American Defense - 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The single-piece construction combines lightweight performance with robust 6061 T6 aluminum construction, finished in hard coat T3 Mil-Spec anodize for durability. Choose between standard or TAC lever configurations to match your operational needs. Dual co-witness and lower 1\/3 co-witness height options provide flexible sight picture alignment, while the patented QD Auto Lock™ Lever system accommodates both in-spec and out-of-spec rail systems for reliable, repeatable mounting across diverse platforms.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul itemprop=\"positiveNotes\" itemscope=\"\" itemtype=\"http:\/\/schema.org\/ItemList\"\u003e\n\u003cli itemprop=\"itemListElement\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/ListItem\"\u003e\u003cspan itemprop=\"name\"\u003eThe AD-509T QD mount features the Patented QD Auto Lock™ Lever system.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli itemprop=\"itemListElement\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/ListItem\"\u003e\u003cspan itemprop=\"name\"\u003eDoes not require proprietary tools for adjustment.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli itemprop=\"itemListElement\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/ListItem\"\u003e\u003cspan itemprop=\"name\"\u003eCan be adjusted with your finger or a flat blade screwdriver.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli itemprop=\"itemListElement\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/ListItem\"\u003e\u003cspan itemprop=\"name\"\u003eLever can be configured to lock to the front or the rear.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli itemprop=\"itemListElement\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/ListItem\"\u003e\u003cspan itemprop=\"name\"\u003eSuperior clamping surface to insure maximum rail engagement.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli itemprop=\"itemListElement\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/ListItem\"\u003e\u003cspan itemprop=\"name\"\u003e30% lighter than our standard mounts.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e"}
Engineered specifically for the Holosun 509T, this precision QD mount delivers versatile mounting solutions across AR pistols and compact weapon platforms. The single-piece construction combines lightweight performance with robust 6061 T6 aluminum construction, finished in hard coat T3 Mil-Spec anodize for durability. Choose between standard or TAC lever configurations to match your operational needs. Dual co-witness and lower 1/3 co-witness height options provide flexible sight picture alignment, while the patented QD Auto Lock™ Lever system accommodates both in-spec and out-of-spec rail systems for reliable, repeatable mounting across diverse platforms.
Features
- The AD-509T QD mount features the Patented QD Auto Lock™ Lever system.
- Does not require proprietary tools for adjustment.
- Can be adjusted with your finger or a flat blade screwdriver.
- Lever can be configured to lock to the front or the rear.
- Superior clamping surface to insure maximum rail engagement.
- 30% lighter than our standard mounts.
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Holosun 509T QD Mount Low) - HCC Tactical","id":36325452775578,"position":5,"preview_image":{"aspect_ratio":1.0,"height":1382,"width":1382,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/American_Defense_-_Holosun_509T_QD_Mount_Low_-_HCC_Tactical.jpg?v=1773248916"},"aspect_ratio":1.0,"height":1382,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/American_Defense_-_Holosun_509T_QD_Mount_Low_-_HCC_Tactical.jpg?v=1773248916","width":1382},{"alt":"American Defense - Holosun 509T QD Mount Lower 1\/3 Co-Witness) - HCC Tactical","id":36325466931354,"position":6,"preview_image":{"aspect_ratio":1.0,"height":2000,"width":2000,"src":"\/\/www.hcctac.com\/cdn\/shop\/files\/American_Defense_-_Holosun_509T_QD_Mount_Lower_1_3_Co-Witness_-_HCC_Tactical.jpg?v=1773248946"},"aspect_ratio":1.0,"height":2000,"media_type":"image","src":"\/\/www.hcctac.com\/cdn\/shop\/files\/American_Defense_-_Holosun_509T_QD_Mount_Lower_1_3_Co-Witness_-_HCC_Tactical.jpg?v=1773248946","width":2000}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003cp\u003e\u003cspan\u003eEngineered specifically for the Holosun 509T, this precision QD mount delivers versatile mounting solutions across AR pistols and compact weapon platforms. The single-piece construction combines lightweight performance with robust 6061 T6 aluminum construction, finished in hard coat T3 Mil-Spec anodize for durability. Choose between standard or TAC lever configurations to match your operational needs. Dual co-witness and lower 1\/3 co-witness height options provide flexible sight picture alignment, while the patented QD Auto Lock™ Lever system accommodates both in-spec and out-of-spec rail systems for reliable, repeatable mounting across diverse platforms.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cul itemprop=\"positiveNotes\" itemscope=\"\" itemtype=\"http:\/\/schema.org\/ItemList\"\u003e\n\u003cli itemprop=\"itemListElement\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/ListItem\"\u003e\u003cspan itemprop=\"name\"\u003eThe AD-509T QD mount features the Patented QD Auto Lock™ Lever system.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli itemprop=\"itemListElement\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/ListItem\"\u003e\u003cspan itemprop=\"name\"\u003eDoes not require proprietary tools for adjustment.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli itemprop=\"itemListElement\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/ListItem\"\u003e\u003cspan itemprop=\"name\"\u003eCan be adjusted with your finger or a flat blade screwdriver.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli itemprop=\"itemListElement\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/ListItem\"\u003e\u003cspan itemprop=\"name\"\u003eLever can be configured to lock to the front or the rear.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli itemprop=\"itemListElement\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/ListItem\"\u003e\u003cspan itemprop=\"name\"\u003eSuperior clamping surface to insure maximum rail engagement.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli itemprop=\"itemListElement\" itemscope=\"\" itemtype=\"https:\/\/schema.org\/ListItem\"\u003e\u003cspan itemprop=\"name\"\u003e30% lighter than our standard mounts.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e"}