Product Description The 51T S.T.A.M.P. Mount (Spring Tensioned Accessory Mounting Platform) from Advanced Armament Corp (AAC) is a precision-engineered fast-attach mounting system designed for compatibility with both legacy and current production 51 Tooth muzzle devices manufactured to AAC specifications. Built for speed and reliability, this mount allows users to quickly install or remove a silencer from a 51T muzzle-device-equipped host firearm with just one hand, leveraging an intuitive motion and gross motor skills. An internal ACME thread paired with a spring-tensioned internal feature ensures solid, wiggle-free engagement with 51T muzzle devices. Secondary retention is handled by a coil-spring tensioned, toothed pawl featuring a textured thumb pad for positive locking and effortless release. The pawl axis pin is easily removable, making pawl replacement straightforward when wear occurs. Industry-standard 1.375-24 threads provide broad compatibility with most current production silencers. Note: This mount is not compatible with the MITER style 51T mounting system. Product Highlights Fast-attach mounting system compatible with both legacy and current production 51 Tooth (51T) muzzle devices manufactured to AAC specifications One-handed silencer installation and removal using an intuitive, gross-motor-skill-based motion for rapid deployment in the field Internal ACME thread combined with a spring-tensioned internal feature delivers solid, wiggle-free engagement with 51T muzzle devices Coil-spring tensioned, toothed pawl with textured thumb pad provides reliable secondary retention and positive locking Industry-standard 1.375-24 threads ensure broad compatibility with most current production silencers Specs Brand: Advanced Armament Corp (AAC) MPN: 65014 UPC: 850036491590 Thread Standard: 1.375-24 (Industry Standard) Internal Thread Type: ACME Thread Compatibility: 51 Tooth (51T) muzzle devices manufactured to AAC specifications (legacy and current production) Gun Make: Universal Retention System: Coil-spring tensioned, toothed pawl with textured thumb pad Color: Black Note: Not compatible with MITER style 51T mounting system Disclaimer: We strive to provide accurate and up-to-date product descriptions, specifications, and images; however, errors or omissions may occasionally occur. We are not responsible for any inaccuracies or discrepancies in the content provided. If you notice anything incorrect or unclear, please contact us so we can correct it. When in doubt, we recommend verifying details directly with the product&';s manufacturer.