9mm 3-lug muzzle brake allows for quick attachment of sound suppressors without sacrificing flash mitigation and recoil management when shooting unsuppressed. This tri-lug muzzle brake gives you the ability to quickly attach a sound suppressor without sacrificing flash mitigation and recoil management when shooting unsuppressed. Featuring a universal 3-lug interface, this 3-lug muzzle brake can quickly interface with any pistol caliber sound suppressor as well as the Angstadt arms 3-lug QD blast shield. Made from hardened steel with a black nitride finish Install muzzle device with the supplied shim kit to correctly time device, do not use a crush washer