1. Short title This Act may be cited as the High Speed Gunfire Prevention Act . 2. Bump stocks and acceleration devices (a) Prohibition Section 922 of title 18, United States Code, is amended— (1) by adding at the end of subsection (o) the following: (3) (A) 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, 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, and any bump-stock-type device, i.e., a device that allows a semiautomatic weapon to shoot more than one shot with a single pull of the trigger by harnessing the recoil energy of the semiautomatic weapon to which it is affixed so that the trigger resets and continues firing without additional physical manipulation of the trigger by the shooter. (B) The term automatically as it modifies shoots, is designed to shoot, or can be readily restored to shoot, means functioning as the result of a self-acting or self-regulating mechanism that allows the firing of multiple rounds through a single function of the trigger; and single function of the trigger means a single pull of the trigger and analogous motions.