The M203 is a single-shot, 40 mm under-barrel grenade launcher, originally designed by the U.S. military, that attaches beneath a rifle and is compatible with various weapons. | Military Mechanics
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The M203 is a single-shot, 40 mm under-barrel grenade launcher, originally designed by the U.S. military, that attaches beneath a rifle and is compatible with various weapons. | Military Mechanics
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