EXAMINE THIS REPORT ON COLT M4 MAGPUL

Because of the brief barrel, the vehicle-15 SMGs experienced from the loud and bright muzzle blast, and several muzzle units were developed to lower this. The SMGs ended up in the beginning equipped with the conventional M16 rifle's "duckbill" or 3-prong flash hiders, which did not reduce the condition. In September 1966, Colt formulated a three.fi