M4 Carbine

The M4 carbine has become one of the defining military firearms of the late 20th and early 21st centuries. Developed as a fusion of the XM177E2 Colt Commando and the M16A2 assault rifle, the M4 offered a more convenient battlefield firearm than the full-length M16 variants, and the US Army adopted it as the standard infantry weapon in the 1990s. Today, military and law-enforcement personnel of mor...