XM177E2 NO FURTHER A MYSTERY

Due to the short barrel, the CAR-15 SMGs endured from the loud and bright muzzle blast, and many muzzle products were being developed to cut back this. The SMGs were initially fitted With all the conventional M16 rifle's "duckbill" or a few-prong flash hiders, which didn't relieve the issue. In September 1966, Colt created a three.five-inch (89 mm