http://www.state.nj.us/njsp/info/pdf/firearms/062408_title13ch54.pdf
There bud that is the list of NJ Gun laws including trhe stuff banned in the state.
Basically NJ has the entire AWB on its books, its not Fed law but its NJ law, so nothing like "Colt AR-15" or "Bushmaster M4 type " or even "Autovmat Kalashnikov" ...
the thiing is, AK wise, Nothing that says AK or the words etc. in it is allowed. IO got banned this past summer for having "AK" included in its model numbers. They gave owners like 24 hours to turn them in or risk the gun squad fuzz showing up oin ur doorstep, honestly.\
There are also particularly stupid laws, like Semi auto shotguns here cant have more than 6 rounds, nor pistol grips, and nothing can have more than 15 rounds, etc...
So study up.
Also there is a forum njgunsforum.com -- its very informative but i will caution you the people are all friends with each other and some of them, well, i wouldn't exactly go out to the bar with and if i saw some t the bar i'd probably heckle in real life for the heckling they do online. But hey thats just me I guess. u may make friends fast there lol.
Hope that helps.