DETAILED NOTES ON COLT M4 MAGPUL

Because of the shorter barrel, the CAR-15 SMGs endured from the loud and bright muzzle blast, and several muzzle units have been formulated to reduce this. The SMGs were in the beginning equipped Along with the normal M16 rifle's "duckbill" or a few-prong flash hiders, which didn't ease the trouble. In September 1966, Colt developed a three.five-in