This muzzle device is excellent as a stand-alone flash hider, but also serves double duty as an attachment point for a Surefire quick detachable (QD) sound suppressor. It features exacting tolerances for minimal shift in zero, regardless of the number of times a suppressor is attached/detached. Its high resistance to heat ensures years of reliable use.
Threads onto barrel, acts as a muzzle brake or flash hider (see product description). Adapter portion is to attach a Surefire suppressor (law enforcement use only).