How to shoot a M4 with M203 Grenade Launcher | Field Test | Tactical Rifleman
This guide details the operational procedure for the M203 grenade launcher mounted on an M4 carbine, as demonstrated by a T1G instructor. It covers loading, firing, and the use of 40mm training rounds for marking targets. The instruction emphasizes the versatility of the M203 beyond explosive ordnance, including its utility for marking and tactical applications.











