The M4/M4A1 5.56mm Carbine is a lightweight, gas operated, air cooled, magazine fed, selective rate, shoulder fired weapon with a collapsible stock. It is now the standard issue firearm for most ...

Sen. Tom Coburn, R-Okla., a leading critic of the M4, said Thursday the Army needs to move quickly to acquire a combat rifle suited for the extreme conditions U.S. troops are fighting in.

Soldiers will continue to use the M4 carbine or improved M4A1 carbine as their issued weapon, as the Army has concluded the Improved Carbine competition without having selected a winner.

The Army sent out letters to gun makers, such as Heckler & Koch, FNH-USA, Remington Defense, Adcor Defense Inc. and Colt Defense LLC, the original maker of the M4 carbine, informing them that no ...

Marine grunts are applauding their new commandant's decision to arm the service's infantrymen with the M4 carbine in place of the iconic M16 rifle after years of close-quarters battles.

The M4 Carbine is the Army's primary individual combat rifle for Infantry, Ranger, and Special Operations forces. Since its introduction in 1991, the M4 carbine has proven its worth on the ...

The Army is asking the gun industry to build new components for its soldiers' primary weapon — the M4 carbine — a move that experts say is a tacit admission that the service has been supplying ...

The M16 lacks maneuverability compared to the M4 and other weapons. A large part of why the M4 carbine is popular with troops is its overall maneuverability in close quarters.