You can have AK if you had it before '94 or was in circulation before '94; if it is nos then it's post ban. Post bab passes muster with only 1 tactical (grenade launch, flash suppress etc.). You can have mags in excess of 10 rounds as long as they were made before '94.
http://www.scribd.com/doc/13624979/New-York-State-Gun-Laws
law defining assault weapon:
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 Ga
lil;
(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
very confusing