The ASR (Active Spring Retention) Mount is a quick attach/detach system for almost all SilencerCo suppressors. This one-hand-on, one-hand-off mounting system is compatible with all ASR muzzle devices, allowing for ease of transfer from one silencer to another. Once shouldered, the locking ring ensures the silencer won't rotate or work itself loose under a heavy firing schedule.Key FeaturesCompatibility: Works with all ASR muzzle devices for versatile use.Mounting System: Features a quick attach/detach design for efficient silencer changes.Locking Mechanism: Includes a locking ring that prevents rotation and loosening during use.Included Models: Compatible with Omega 300, Hybrid 46, and Harvester 338 models.