DETAILED NOTES ON COLT M4 MAGPUL

Due to short barrel, the CAR-fifteen SMGs experienced from a loud and bright muzzle blast, and quite a few muzzle products were formulated to lower this. The SMGs were being originally fitted Together with the regular M16 rifle's "duckbill" or three-prong flash hiders, which did not alleviate the problem. In September 1966, Colt produced a 3.5-inch