Section 121 of chapter 140, as appearing in the 2014 Official Edition, is hereby amended by striking out the definition of “Assault weapon” and inserting in place thereof the following definition:- “Assault weapon”, shall have the same meaning as a semiautomatic assault weapon as defined in the federal Public Safety and Recreational Firearms Use Protection Act, 18 U.S.C. section 921(b)(30) as appearing in such section on September 13, 1994, and shall include, a semiautomatic rifle that has: (a) an ability to accept a detachable magazine and (b) at least 2 of the following characteristics: (i) a folding or telescoping stock; (ii) a pistol grip that protrudes conspicuously beneath the action of the weapon; (iii) a bayonet mount; (iv) a flash suppressor or threaded barrel designed to accommodate a flash suppressor; or (v) a grenade launcher; provided, however, that assault weapon shall not include: (i) any of the weapons, or replicas or duplicates of such weapons, specified in appendix A to 18 U.S.C. section 922 as appearing in such appendix on September 13, 1994, as such weapons were manufactured on October 1, 1993; (ii) any weapon that is operated by manual bolt, pump, lever or slide action; (iii) any weapon that has been rendered permanently inoperable or otherwise rendered permanently unable to be designated a semiautomatic assault weapon; (iv) any weapon that was manufactured prior to the year 1899; (v) any weapon that is an antique or relic, theatrical prop or other weapon that is not capable of firing a projectile and which is not intended for use as a functional weapon and cannot be readily modified through a combination of available parts into an operable assault weapon; (vi) any semiautomatic rifle that cannot accept a detachable magazine that holds more than five rounds of ammunition; or (vii) any semiautomatic shotgun that cannot hold more than five rounds of ammunition in a fixed or detachable magazine.