Ultradyne USA, Apollo S Compensator Muzzle Brake with Timing Nut, AR, 223 Remington/5.56 NATO, 1/2X28 Thread, .975" Outside Diameter, Steel Nitri

High quality components and precise manufacturing make Ultradyne parts ideal for maintaining and upgrading firearms. The durability, reliability and excellent build quality of these parts will ensure years of service you can count on.