A REVIEW OF XM177E2

Because of the small barrel, the CAR-15 SMGs experienced from the loud and bright muzzle blast, and a variety of muzzle products have been made to reduce this. The SMGs had been at first fitted Together with the standard M16 rifle's "duckbill" or three-prong flash hiders, which did not ease the situation. In September 1966, Colt formulated a 3.5-in