Congress has long restricted access to “‘machinegun[s],’” a category of firearms defined by the ability to “shoot, automatically more than one shot . . . by a single function of the trigger.” 26 U. S. C. §5845(b); see also 18 U. S. C. §922(o). Semiautomatic firearms, which require shooters to reengage the trigger for every shot, are not machineguns. This case asks whether a bump stock—an accessory for a semiautomatic rifle that allows the shooter to rapidly reengage the trigger (and therefore achieve a high rate of fire)—converts the rifle into a “machinegun.” We hold that it does not and therefore affirm.
The first paragraph of the Court’s opinion:
Congress has long restricted access to “‘machinegun[s],’” a category of firearms defined by the ability to “shoot, automatically more than one shot . . . by a single function of the trigger.” 26 U. S. C. §5845(b); see also 18 U. S. C. §922(o). Semiautomatic firearms, which require shooters to reengage the trigger for every shot, are not machineguns. This case asks whether a bump stock—an accessory for a semiautomatic rifle that allows the shooter to rapidly reengage the trigger (and therefore achieve a high rate of fire)—converts the rifle into a “machinegun.” We hold that it does not and therefore affirm.