I'm not even interested in one, having had an M2 Carbine barrel cut off at the end of the wood and the stock cut off behind the grip. It was fitted with a sling and to me was absolutely useless, other than it would fire rounds. I got rid of it as soon as I was able to get a folding stock M2 Carbine while in VN.
This subject came up here in Illinois in a lgs. I was told these "pistol" Ar's were considered as "other" weapons, along with the new shotgun "pistols" and could not be concealed by a permit holder as a handgun. But this is just unconfirmed hearsay to me. Those weapons in your photos are much longer than the cut off version I had and look very operable.
A photos off the internet of one.