The Little but Powerful: M320 & M203 Grenade Launcher in Action / Shooting

U.S. Paratroopers and Marines practices with the M320 & M203 grenade launchers from short and long range during live-fire exercises. | Video Compilation ►The M203 is a single-shot 40 mm under-barrel grenade launcher designed to attach to a rifle. It uses the same rounds as the older stand-alone M79 break-action grenade launcher, which utilizes the High-Low Propulsion System to keep recoil forces low. Quite versatile, and compatible with many rifle models, the M203 was originally designed for the U.S. M16 a