It really comes down to a pre-ban or post ban state, so if a state is post-ban they pretty much have the same rules as any other state regarding post-ban regs.
Actually California is MUCH more strict on post-ban compliance. If you think it is bad in NJ, go look around at the restrictions in CA. No removable magazine.
Another one of the things most people have on a rilfe is a pistol grip, dont really know what the alternatives are though
