Grenade launcher
Senior Airman Jared Claxton prepares to fire a practice round from an M203 grenade launcher during weapons familiarization training at McConnell Air Force Base, Kan., July 12, 2014. The M203 is a single-shot 40mm under-barrel grenade launcher that is attached the underside of a M4 carbine rifle. The training is an annual requirement to keep the Airmen current on the weapons skills that will be required of them on post during a deployment. (U.S. Air Force photo by Capt. Zach Anderson)