EXAMINE THIS REPORT ON COLT M4 MAGPUL

Due to the quick barrel, the vehicle-15 SMGs experienced from a loud and bright muzzle blast, and a number of muzzle devices have been formulated to lessen this. The SMGs were initially fitted Together with the common M16 rifle's "duckbill" or three-prong flash hiders, which didn't relieve the issue. In September 1966, Colt produced a three.5-inch