You are correct and in the People’s Republic of new Jersey that is how the AR STILL has to be fitted in order to purchase it.Otherwise it looks EVIL! Also can’t have bayonet lug and flash supressor.
I have one of those NJ models. I have fixed stock instead of folding, big deal. I have no flash suppresor, it is louder. No bayonet lug, so what. Ten round magazine, just bring more magazines(allowed 15 round ones, but nobody makes them). Also cannot say Colt AR-15 on the gun, any other combination of letters is OK. Same with AK-47, WASR-10 is OK.
I’m just grateful the libs no nothing about guns. If they did, I would be really screwed here in NJ.