NY Penal Law section 265
22. "Assault weapon" means
(a) a semiautomatic rifle that has an ability to accept a detachable magazine and has at least two 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;
(v) a grenade launcher; or
(b) a semiautomatic shotgun that has at least two 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 fixed magazine capacity in excess of five rounds;
(iv) an ability to accept a detachable magazine; or
(c) a semiautomatic pistol that has an ability to accept a detachable magazine and has at least two of the following characteristics:
(i) an ammunition magazine that attaches to the pistol outside of the pistol grip;
(ii) a threaded barrel capable of accepting a barrel extender, flash suppressor, forward handgrip, or silencer;
(iii) a shroud that is attached to, or partially or completely encircles, the barrel and that permits the shooter to hold the firearm with the nontrigger hand without being burned;
(iv) a manufactured weight of fifty ounces or more when the pistol is unloaded;
(v) a semiautomatic version of an automatic rifle, shotgun or firearm; or
(d) any of the weapons, or functioning frames or receivers of such weapons, or copies or duplicates of such weapons, in any caliber, known as:
(i) Norinco, Mitchell, and Poly Technologies Avtomat Kalashnikovs (all models);
(ii) Action Arms Israeli Military Industries UZI and Galil;
(iii) Beretta Ar70 (SC-70);
(iv) Colt AR-15;
(v) Fabrique National FN/FAL, FN/LAR, and FNC;
(vi) SWD M-10, M-11, M-11/9, and M-12;
(vii) Steyr AUG;
(viii) INTRATEC TEC-9, TEC-DC9 and TEC-22; and
(ix) revolving cylinder shotguns, such as (or similar to) the Street Sweeper and Striker 12;
(e) provided, however, that such term does not include:
(i) any rifle, shotgun or pistol that (A) is manually operated by bolt, pump, lever or slide action; (B) has been rendered permanently inoperable; or (C) is an antique firearm as defined in 18 U.S.C. 921(a)(16);
(ii) a semiautomatic rifle that cannot accept a detachable magazine that holds more than five rounds of ammunition;
(iii) a semiautomatic shotgun that cannot hold more than five rounds of ammunition in a fixed or detachable magazine;
(iv) a rifle, shotgun or pistol, or a replica or a duplicate thereof, specified in Appendix A to section 922 of 18 U.S.C. as such weapon was manufactured on October first, nineteen hundred ninety-three. The mere fact that a weapon is not listed in Appendix A shall not be construed to mean that such weapon is an assault weapon; or
(v) a semiautomatic rifle, a semiautomatic shotgun or a semiautomatic pistol or any of the weapons defined in paragraph (d) of this subdivision lawfully possessed prior to September fourteenth, nineteen hundred ninety-four.