Add Yahoo as a preferred source to see more of our stories on Google. (Sons of Liberty Gun Works) Developed from the M16 rifle, the M4 carbine was never meant to be a frontline service weapon.

The Army’s plans for a carbine competition could spur innovations in military weapon design. The M4 rifle has been standard issue for U.S. soldiers for the past 15 years. But that could change thanks ...

A new U.S. Army video shows how today's standard infantry weapon, the M4 carbine, is being updated to perform better on the battlefield. The Army is gradually converting its entire inventory of M4s to ...