The Griffin Armament M4SD muzzle devices interface with Griffin's M4SD series of silencers. The M4SD Hammer Comp provides 2 sacrificial baffles that reduce recoil and ensure the maximum service life of your suppressor. Slotted compensating features provide tuned muzzle stability. CNC machined from a solid bar of heat-treated 17-4ph stainless steel, the M4SD Hammer Comp is built to last.

Compatible with the M4SD series SD-QD suppressor interface the Tactical Compensator provides a sacrificial baffle to increase the service life of your silencer. Compatible with QD Blast Shield.

Includes a shim set and over-travel stop washer.

The over-travel stop tab should be positioned at the bottom of the muzzle device at 6 O'clock.