; and (9) . (b) Armor-Piercing, concealable weapon Section 5845 of such Code is amended by adding at the end the following new subsection: (n) Armor-Piercing, concealable weapon The term armor-piercing, concealable weapon means any weapon or device capable of being concealed on the person and from which can be discharged through the energy of an explosive any of the following rounds: (1) .450 Bushmaster. (2) 5.56mm (including the 5.56x45mm NATO and .223 Remington). (3) 7.62mm (including the 7.62x39mm, .308 Winchester, 7.62 NATO, 7.62x51mm NATO, .30 carbine, 7.62x33mm, or 300 AAC Blackout). (4) .50 BMG. (5) 5.7x28mm. (6) Any other round determined by the Bureau of Alcohol, Tobacco, Firearms, and Explosives to be capable of, when fired by such weapon or device, penetrating the standard body armor worn by law enforcement officers. . (c) Effective date (1) In general The amendments made by this section shall take effect on the date of the enactment of this Act. (2) Application to possession on date of enactment Notwithstanding paragraph (1), any person on the date of the enactment of this Act possessing a device described in section 5845(a)(8) of the Internal Revenue Code of 1986 (as amended by this Act) shall, not later than the end of the 18th month beginning after the date of the enactment of this Act, register such device with the Secretary of the Treasury and include with such registration the information required under section 5841(a) of such Code. Such registration shall become a part of the National Firearms Registration and Transfer Record required to be maintained by such section. 3. Use of National Firearms Act taxes Part I of subchapter B of chapter 53 of the Internal Revenue Code of 1986 is amended redesignating section 5849 as section 5850 and by inserting after section 5847 the following new section: 5849. Use of taxes To carry out the purposes of this chapter and to supplement appropriations otherwise made available for such purposes, the Bureau of Alcohol, Tobacco, Firearms, and Explosives may spend