Strike Industries CCCOMP308 Cookie Cutter Comp Black Matte Steel with 5/8"-24 tpi Threads, 1.57" OAL & 0.26" Inside/2.14" Outside Diameter for 308 Win, 7.62x51mm NATO AR-Platform

The Cookie Cutter Comp muzzle brake is for compensating muzzle rise and recoil on Short Barrel Rifles (SBR's) and AR-Pistols. It is designed as a single chamber muzzle brake with a large surface area, which minimizes recoil substantially and at the same time compensates muzzle rise.