Mobile has a vast arsenal of guns, but few are as popular as the M4 assault rifle. Endlessly customizable, the US-made M4 is ...

** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. ** The M4-22 is a blow-back operated, ...

The standard infantry weapon of the U.S. Army can trace its origins all the way back to the Vietnam War. The M4A1 carbine is a shorter, lighter, fully modernized version of the original M-16 rifle ...

The story of the M4 goes back to the mid-sixties and the early days of the Vietnam War. The Pentagon, mulling sending hundreds of thousands of troops to South Vietnam, wanted a small, lightweight ...