The M4 is a shorter, lighter carbine version of the M16 adopted by the U.S. military in the 1990s.
Its compact size made it the standard rifle for many U.S. units. Military versions are select fire and are not sold to civilians.
Quick Specs
- Caliber: 5.56x45mm NATO
- Barrel length: about 14.5 inches
- Type: Military carbine
- Adopted: 1994
Availability
Model names, versions and production change over time. Check the Colt website or a licensed dealer for current availability.
Safety First
Treat every firearm as loaded, keep it pointed in a safe direction and keep your finger off the trigger until you are ready to shoot. Buy only from a federally licensed dealer, take a certified safety course and check current state and local laws before buying, carrying or transporting any firearm.