http://www.ct.gov/despp/lib/despp/slfu/firearms/assault_weapons.pdf
Sec. 53-202a. Assault weapons: Definition.
(a) As used in this section and sections 53-202b to 53-202k, inclusive, “assault weapon” means:
(1) Any selective-fire firearm capable of fully automatic, semiautomatic or burst fire at the option of the user or any of the other following specified semiautomatic firearms:
Algimec Agmi
Goncz High-Tech Carbine and High-Tech Long Pistol
Armalite AR-180
Heckler & Koch HK-91, HK-93, HK-94 and SP-89
Australian Automatic Arms SAP Pistol
Holmes MP-83
Auto-Ordnance Thompson type
MAC-10, MAC-11 and MAC-11 Carbine type
Avtomat Kalashnikov AK-47 type
Intratec TEC-9 and Scorpion
Barrett Light-Fifty model 82A1
Iver Johnson Enforcer model 3000
Beretta AR-70
Ruger Mini-14/5F folding stock model only
Bushmaster Auto Rifle and Auto Pistol
Scarab Skorpion
Calico models M-900, M-950 and 100-P
SIG 57 AMT and 500 series
Chartered Industries of Singapore SR-88
Spectre Auto Carbine and Auto Pistol
Colt AR-15 and Sporter
Springfield Armory BM59, SAR-48 and G-3
Daewoo K-1, K-2, Max-1 and Max-2
Sterline MK-6 and MK-7
Ecom MK-IV, MP-9 and MP-45
Steyr AUG
Fabrique Nationale FN/FAL, FN/LAR, or FN/FNC
Street Sweeper and Striker 12 revolving cylinder shotguns
FAMAS MAS 223
USAS-12
Feather AT-9 and Mini-AT
UZI Carbine, Mini-Carbine and Pistol
Federal XC-900 and XC-450
Weaver Arms Nighthawk
Franchi SPAS-12 and Law-12
Wilkinson “Linda” Pistol
Galil AR and ARM
(2) A part or combination of parts designed or intended to convert a firearm into an assault weapon, as defined in subdivision (1) of this subsection or any combination of parts from which an assault weapon, as defined in subdivision (1) of this subsection, may be rapidly assembled if those parts are in possession or under the control of the same person;
(3) Any semiautomatic firearm not listed in subdivision (1) of this subsection that meets the following criteria:
(A) A semiautomatic rifle that has an ability to accept a detachable magazine and has at lease two of the following:
(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; and
(v) A grenade launcher; or
(B) A semiautomatic pistol that has an ability to accept a detachable magazine and has at least two of the following:
(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 non-trigger hand without being burned;
(iv) A manufactured weight of fifty ounces or more when the pistol is unloaded; and
(v) A semiautomatic version of an automatic firearm; or
(C) A semiautomatic shotgun that has at least two of the following:
(i) A folding or telescoping stock;
(ii) A pistol grip that protrudes conspicuously beneath the action of the weapon;