The M4/M4A1 5.56mm Carbine is a lightweight ... It is now the standard issue firearm for most units in the U.S. military. Equipped with a shorter barrel, collapsible stock and detachable carrying ...

Adopted by the US military in 1994, the M4 carbine quickly became a battlefield icon. From its first deployment in Kosovo to its critical role in Afghanistan and Iraq, the M4 has proven itself as a ...