You can't afford to stand around and wait for your eyes to recover from a bright muzzle flash. And you definitely can't afford to become an easy target. Troy Medieval Flash Suppressor instantly eliminates flash so you can keep your eyes on the job and your gun in the action. The Medieval Flash Suppressor is tough enough to serve as an improvised breaching device if the situation calls for it. Features aggressive diamond-shaped teeth for close fighting and is threaded for all M16/AR15/M4 rifles and carbines. 2.25 OAL, hardened 8620 steel.