SilencerCo AC591 ASR Muzzle Brake Black Steel with 5/8″-24 tpi Threads for 30 Cal

This 3-port muzzle brake is compatible with all SilencerCo ASR Mounts. It offers quick and easy one-hand-on, one-hand-off attachment and detachment. The 3-port design effectively reduces felt recoil and muzzle climb. Each ASR muzzle brake comes with a shim set and rocksett for easy application.