TacFire MZ1005N 6 Prong Flash Hider Black Nitride Steel with 1/2″-28 tpi Threads & 2.22″ OAL for 5.56x45mm NATO AR-Platform

Four prong twist style muzzle brake is made of all steel construction with a heat treated, erosion resistant black oxide finish. It comes with a 1/2"x28 thread pitch. Reduces recoil and barrel whip.