The Griffin Armament taper mount muzzle devices interface with our taper mounted suppressor. The Taper mount hammer comp provides 2 sacrificial baffles that reduce recoil and ensure maximum service life of your suppressor. Slotted compensating features provide tuned muzzle stability. CNC machined from a solid bar of heat treated 17-4 PH stainless steel, the Taper Mount Hammer Comp is built to last. This muzzle device is 1.89 inches length from the countersunk thread shoulder to the front face, and is equal to length to an A2 flash suppressor with 0.14 inches thick crush washer, so it can be used in conjunction with so called 14.7 barrels which are marketed as able to be permed to 16.1 inches non NFA length using an A2 and crush washer. The actual barrel length 14.835 inches will bring this device and crush washer mounted A2's to 16.1 inches breech face to forward surface of permed barrel assembly. Taper mount thread protector is compatible with this muzzle device for added protection of thread mounts.