Perfect for a long barrel 5.56 build - Precision Armament M4-72 Severe-Duty Compensator

Works like a charm, part of a larger overall solution, but at the end of the day, my rifle has very little recoil and keeps my eye on target, as well as on subsequent rounds—very high quality. The only issue is the lineup. You'll need the shim kit to get it to tighten down and stay level. This part does not include the kit.