That might be the definition in military jargon. But according to federal law, this is the legal definition of "machine gun":C-dub wrote:A fully automatic M16 is not a machine gun. IIRC, to be a machine gun it must be belt-fed.
26 USC 5845(b) wrote: The term "machinegun" means any weapon which shoots, is designed to shoot, or can be readily restored to shoot, automatically more than one shot, without manual reloading, by a single function of the trigger. The term shall also include the frame or receiver of any such weapon, any part designed and intended solely and exclusively, or combination of parts designed and intended, for use in converting a weapon into a machinegun, and any combination of parts from which a machinegun can be assembled if such parts are in the possession or under the control of a person.