I thought the M4 version with the pistol grip was ok since pistol grip isn't listed for semiauto shotguns and it doesn't have a detachable magazine. It's just movable stocks, 2nd vertical grip, and barrel attachments. I know the pistol grip M4 is NYS legal.
You can own a Mini-14 and probably a Benelli M4 with no pistol grip in NYC. You can also get your rifle/shotgun permit in a few months for a temporary stay as long as you stay on top of the license division.
From reading OP's posts.. it appears he's interested in rifles/ shotguns with a pistol grip. Seems Op is interested in the tactical look.