HR 1022 from the last session of Congress would have banned them by name, no special stocks, or accessories requires.
BTW, what sort of stock is that. I'd like to get a folder for my Inland built Carbine.
It's a Choate. It comes from the factory in straight black ABS, with two thin strips of very coarse checkering on the forearm and pistol grip. I did the wraparound stipling with a woodburner and applied the paintjob myself. Since that photo, I've added a picatinny handguard and some optics...