M320 grenade launcher

The M320 grenade launcher was the successor to the M203 grenade launcher, as well as its replacement in the United States Army. Like the M203, the M320 utilized 40mm explosive rounds, was a single shot launcher, and had the same High-Low Propulsion System. Unlike the M203, however, it came equipped with nightvision equipment and was double-barrelled.

Usage
The Sons of Liberty attack squads (Hi-Tech Soldiers) sometimes had the M320 equipped to their M4s, in addition to the M203.

Drebin sold several XM320 grenade launchers (the prototype stage) as a gun launderer. In addition, Pieuvre Armement, during their mission into South America, carried the weapon around as standalone. It carried four ammunition types: HE, smoke, stun, and WP.