I was just going to post another article about this. being from NJ this one is particularly satisfying for me. The NJ assault weapons ban law listed all the guns that were banned as well as characteristics that were banned as well. rifles could not have folding stocks, forward pistol grips, flash suppressors, threaded barrels for screw on devices like silencers, and other cosmetic things. Apparently the court left some of NJ's law in effect while throwing out the rest. I suspect threaded barrels are still illegal, but I have not been able to get specifics yet.
Manufacturers did make some weapons that were legal in NJ and some gun dealers would modify other weapons to be in compliance with the law, but this made buying a legal modern rifle very difficult. They were very hard to find. I have not seen anything yet about what NJ will do to respond to the court's ruling or if it goes into effect immediately. Still all good news for NJ and the country.