THE ULTIMATE GUIDE TO COLT M4 MAGPUL

Due to the quick barrel, the vehicle-15 SMGs suffered from the loud and bright muzzle blast, and a number of muzzle equipment were being made to lower this. The SMGs were in the beginning fitted Along with the normal M16 rifle's "duckbill" or a few-prong flash hiders, which did not alleviate the challenge. In September 1966, Colt designed a three.f