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.

Finish: Black
Type: Muzzle Brake
Model: ASR
Size: 3/4x24
Material: Steel
Thread Pattern: 3/4"-24 tpi