The ASR Closed-Tine Flash Hider is compatible with the ASR (Active Spring Retention) Mounts. Maintains a high level of flash reduction and is less prone to getting snagged on branches or gear while out on the field. This class leading Closed-Tine Flash hider looks badass on the end of your gun, and can be quickly paired with an ASR Mount to quickly attach your suppressor. 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.