THE DEFINITIVE GUIDE TO BLUED COLT 1911

Due to the limited barrel, the vehicle-15 SMGs suffered from the loud and bright muzzle blast, and quite a few muzzle devices had been produced to reduce this. The SMGs were being originally fitted with the normal M16 rifle's "duckbill" or a few-prong flash hiders, which didn't ease the situation. In September 1966, Colt created a three.5-inch (89Â