Sub-machine gun
A sub-machine gun is a short-barrelled automatic magazine-fed weapon, firing pistol ammunition, which is used for close-quarters combat.
Alternative names are sub-machine carbine and machine pistol.Adapted from National Rifle Association of America’s Institute for Legislative Action (NRA-ILA) Glossary, http://www.nraila.org/glossary.aspx?s=Glossary&st=&ps=.
Last updated on: 01 February 2014