The Modern Materiel Compression Muzzle Brake features a one-piece internal cone design that keeps recoil low and allows for easy cleaning.  CNC machined from a solid bar of heat treated 4150 Chrome-Moly steel with flats for 13/16″ wrench installation.

1/2″ x 28 industry standard Thread Pitch for 5.56mm carbines.  The internal bore diameter is large enough to allow it to work well with 9mm barrels as well.

Pre-drilled 1/8″ pin hole at bottom-dead-center.

Includes crush washer.