A REVIEW OF XM177E2

Because of the shorter barrel, the vehicle-15 SMGs suffered from a loud and bright muzzle blast, and quite a few muzzle equipment were formulated to cut back this. The SMGs had been initially fitted Together with the typical M16 rifle's "duckbill" or 3-prong flash hiders, which did not relieve the trouble. In September 1966, Colt produced a 3.five-