O.K. guys....First there is nothing stated in the CT AWB that bans colapsable stocks, FH's, etc. The ban list certain weapons that are banned by name not by features as the federal AWB does. You also cannot register a assault weapon in CT if you move there with it, inherit it get it for free, or already had it, etc. You have to either make it inoperatable or turn it in the the authorities. (sucks ass don't it?) Check this link out, there you will find all the info you need.
CT AWBIf you click on the link (assault weapons list) once on the DPS website you will see that the Colt AR-15 and Sporter are named by name, it does not say AR-15 "type" (as of yet anyway), so if you buy a Bushmaster or RRA rifle after the AWB sunset and it has the "evil" features it is perfectly legal here in good 'ol communist CT. Any AR-15 type rifle is legal here and readily available, as long as it does'nt say Colt "AR-15" or Colt "Sporter" on the side. Take advantage of this now while you can still get these rifles, I'm sure in the not so distant future CT will add the word "type" the the ban. They have already added language to the ban to cover the many AK rifle variants (Maadi, MAK-90, SAR-1, Etc.)