Inspired by the highly effective RPK brake found on the AK’s big brother, the TAPCO Cage Brake provides improved styling and helps dampen recoil. Machined from high strength steel, our brake has a phosphate finish for years of rugged use and many thousands of rounds. It is threaded in the standard 14 X 1 LH and can be installed as a replacement for any standard threaded AK muzzle. This item counts as 1 U.S. Sec 922r compliant part.