Colt M79 Grenade Launcher
Damage: Varies
Range Increment: 70 ft
Rate of Fire: Single
Magazine: 1 int
Size: Large
Weight: 7 lbs

The M79 grenade launcher is a single-shot, shoulder-fired, break-action grenade launcher that fires a 40x46mm grenade which uses what the US Army calls the High-Low Propulsion System to keep recoil forces low, and first appeared during the Vietnam War. Because of its distinctive report, it has earned the nicknames of "Thumper", "Thump-Gun", "Bloop Tube", and "Blooper" among American soldiers.

Wikipedia Entry