#submachine_gun  machine gun that is a portable automatic firearm
  supertype:  #machine_gun__machinegun  a rapidly firing automatic gun (often mounted)
  subtype:  #Bren_gun__Bren  a submachine gun operated by gas pressure; used by the British in World War II
  subtype:  #burp_gun__machine_pistol__machinepistol  a fully automatic pistol; a small submachine gun
  subtype:  #Kalashnikov  a type of submachine gun made in Russia
  subtype:  #light_machine_gun__lightmachinegun  a submachine gun not greater than .30 millimeter
  subtype:  #Tommy_gun__Thompson_submachine_gun  a .45-caliber submachine gun
  subtype:  #Uzi  a type of submachine gun that is designed and manufactured in Israel; "the Uzi is the weapon of choice for America's crack pedlars"

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