How an M4 Carbine works

The M4 carbine is a ×45mm NATO, gas-operated, magazine-fed, carbine developed in the United States during the 1980s. It is a shortened version of the M16A2. The M4 is extensively used by the United States Armed Forces, with decisions to largely replace the M16 rifle in United States Army (starting 2010) and United States Marine Corps (USMC) (starting 2016) combat units as the primary infantry weapon and service rifle. M4 Carbine: full disassembly & assembly This video was created using the program World of Guns: Gun Disassembly: Also, you can find this application on Google Play, App Store and Amazon.