The Double Star Enforcer Muzzle Brake is designed with four open slots reduce muzzle flash. The muzzle end features four tapered points. CNC machined steel construction Matte black finish Knurled exterior benefits: Designed for breaching and close quarter use Four tapered points allow for the shotgun to be repositioned when performing breaching operations Solid steel construction will hold up to the abuse of being used as a breaching device Knurled exterior allows for simple installation and removal, indexing not required.