The ASR (Active Spring Retention) Mount is a quick attach/detach system for almost all SilencerCo suppressors. The simple one-hand-on, one-hand-off mounting system is compatible with all ASR Muzzle Devices to promote 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 FeaturesMounting System: Features a quick attach/detach design for easy use.Compatibility: Works with all SilencerCo ASR suppressors and ASR Muzzle Devices.Locking Ring: The locking ring secures the silencer in place, preventing rotation or loosening during use.