NOT KNOWN FACTUAL STATEMENTS ABOUT COLT M4 MAGPUL

Due to shorter barrel, the vehicle-15 SMGs endured from the loud and bright muzzle blast, and numerous muzzle units ended up formulated to cut back this. The SMGs have been to begin with fitted Together with the typical M16 rifle's "duckbill" or three-prong flash hiders, which didn't reduce the problem. In September 1966, Colt created a three.five-