; and (2) in paragraph (2)— (A) by striking or at the end of subparagraph (A); (B) by striking the period at the end of subparagraph (B) and inserting ; or ; and (C) by adding at the end the following: (C) any otherwise lawful transfer or otherwise lawful possession of an armor-piercing handgun that was lawfully possessed before the date this subparagraph takes effect. . (e) Ban on unauthorized transport in interstate or foreign commerce Section 922 of such title is amended in each of subsections (a)(4) and (b)(4) by inserting armor-piercing handgun, before machinegun . (f) Enhanced penalties for using, carrying, or possessing during and in relation to a crime of violence or drug trafficking crime Section 924(c)(1) of such title is amended in each of subparagraphs (B)(ii) and (C)(ii) by inserting , an armor-piercing handgun, after machinegun . (g) Penalties for conspiring To commit an offense subject to certain enhanced penalties Section 924(o) of such title is amended by inserting , armor-piercing handgun, after machinegun . (h) Exception from requirement To allow importation of an unserviceable firearm that is a curio or museum piece Section 925(d)(2) of such title is amended by inserting an armor-piercing handgun or before a machinegun . (i) Exception from concealed firearms allowed To be carried by qualified law enforcement officers Section 926B(e)(3) of such title is amended by redesignating subparagraphs (B) and (C) as subparagraphs (C) and (D), respectively, and inserting after subparagraph (A) the following: (B) any armor-piercing handgun; . (j) Exception from concealed firearms allowed To be carried by qualified retired law enforcement officers Section 926C(e)(1)(C) of such title is amended by redesignating clauses (ii) and (iii) as clauses (iii) and (iv), respectively, and inserting after clause (i) the following: (ii) any armor-piercing handgun; .