SilencerCo ASR Muzzle Brake for 8.6 Blackout

This is an ASR muzzle brake for the 8.6 Blackout. SilencerCo part number AC855. The package has been opened but it's never been installed. Includes the original shims and rocksett. 

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.