The Colt M203 Grenade Launcher is a lightweight single shot breech loaded 40mm weapon designed especially for attachment to the M16A2 Rifle and M4 Carbine.
Caliber: 40mm (1.57')
Weight: 3.0 lbs. (empty) 3.6 lbs. (loaded)
Overall Length: 15"
Barrel Length 12"
Height: 3.3" (below rifle bbl C/L)
Width: 3.3' (maximum)
Ammunition Type: Most commonly used CN/CS/OC tear gas rounds, smoke, non lethal projectiles, signal and practice rounds as well as standard 40mm TP rounds.