; 121 Stat. 2559) is amended by inserting after the item relating to section 106 the following: Sec. 107. Implementation plan. . 6. BJS report on use of bump stocks in crime (a) In general Within 180 days after the date of the enactment of this Act, the Bureau of Justice Statistics shall prepare and submit to the Committee on the Judiciary of the House of Representatives and the Committee on the Judiciary of the Senate a written report that specifies the number of times that a bump stock has been used in the commission of a crime in the United States. (b) Definition of bump stock In this section, the term bump stock means a device that— (1) attaches to a semiautomatic rifle (as defined in section 921(a)(28) of title 18, United States Code); (2) is designed and intended to repeatedly activate the trigger without the deliberate and volitional act of the user pulling the trigger each time the firearm is fired; and (3) functions by continuous forward pressure applied to the rifle’s fore end in conjunction with a linear forward and backward sliding motion of the mechanism utilizing the recoil energy when the rifle is discharged.