EDIT I spaced on the stock. That wouldn't have been legal to buy new in NY before, though he could have previously owned it or bought it from a private seller.

If the stock has been pinned so that it is no longer adjustable, it would have been perfectly legal in NY before Jan. 15, 2013. And still legal to own after that date, but no longer legal to buy, sell, or transfer. That's how they got him.



EDIT TO ADD: OK, I now see that there were two rifles. This must be the second, since I see no bayonet lug. The "one feature" would be the pistol grip, so it must be a pinned stock. If the stock has been pinned so that it is no longer adjustable, it would have been perfectly legal in NY before Jan. 15, 2013. And still legal to own after that date, but no longer legal to buy, sell, or transfer. That's how they got him.EDIT TO ADD: OK, I now see that there were two rifles. This must be the second, since I see no bayonet lug. The "one feature" would be the pistol grip, so it must be a pinned stock.