The new Cadex MX2 Self Timing Muzzle Brake design comes from the need to offer a muzzle brake small enough to fit inside a compact suppressor design. Cadex has moved away from crush washers in favor of a locking ring allowing you to install and remove the MX2 with the included wrench quickly and easily. The end of the muzzle brake is tapered to perfectly align the compact suppressor. The MX2 Self Timing Muzzle Brake is lightweight while maintaining enough performance to control the muzzle jump on the rifle. Multiple bore sizes are available from .30 to .33. Comes standard on the CDX-R7 SHP Series rifles.