Maybe ok to own Long gun.
http://www.nyfirearms.com/blog/nys-gun-laws/
It looks like you may be able to own a long gun. Before you spend money on a lawyer read as much of New York State Law as possible.
SNIP:
Purchase
No permit is required for the purchase of a rifle or shotgun (except in New York City).
A license to carry or posses a pistol or revolver is required to purchase a handgun. (See HANDGUNSPOSSESSION and CARRY) Elsewhere than the City of New York, a person licensed to carry or possess a pistol or revolver may apply at any time to the licensing officer in the county of their residence for amendment of his or her license to include one or more such handguns or to cancel a handgun held under the license.
No person, firm or corporation engaged in the retail business of selling rifles, shotguns or handguns, shall sell, deliver or transfer any such gun to another person unless the transferee is provided with a gun locking device and a label on safe storage.
Any business selling firearms must post a sign where the firearms are displayed or sold stating in bold print: “The use of a locking device or safety lock is only one aspect of responsible firearm storage. For increased safety firearms should be stored unloaded and locked in a location that is both separate from their ammunition and inaccessible to children and any other unauthorized person.”
Any manufacturer that ships, transports or delivers a handgun to any person in this state shall include in the container a separate sealed container that encloses: a shell casing of a bullet or projectile discharged from such handgun, and any additional information that identifies such handgun. A gunsmith or dealer in firearms licensed in this state shall, within ten days of delivering to any person a handgun received by such gunsmith or dealer, forward to the division of state police, along with the original transaction report, the sealed container enclosing the shell casing from such handgun received from the
manufacturer.
Upon receipt of the sealed container, the division of state police shall cause to be entered in an automated electronic data-bank pertinent data and other ballistic information relevant to identification of the shell casing and to the handgun from which it was discharged. All firearm exhibitors must conduct a national instant criminal background check prior to all firearm sales or transfers, including sales or transfers of rifles or shotguns at a gun show.
It is lawful for NY residents to purchase or obtain rifles or shotguns in a contiguous state and to receive and transport said rifle and shotguns into the state, provided the person is otherwise eligible to possess a rifle or shotgun under NY law.
Possession – Rifles and Shotguns
There is no state license requirement for the possession of a rifle or shotgun, so long as the rifle has barrel(s) at least 16 inches in length and the shotgun has barrel(s) at least 18 inches in length.
It is unlawful for any person convicted of a felony, other serious offense, or who been certified as not suitable to possess a rifle or shotgun (mentally incompetent) to possess a firearm.
Generally, it is unlawful for anyone under the age of 16 to possess any firearm; however, a rifle or shotgun may be possessed by a person between 12 and 16 who is engaged in target shooting on a range supervised by a military officer, certified instructor, or a parent, guardian or a person over the age of eighteen designated in writing by such parent or guardian provided the adult has a hunter safety certificate.
It is unlawful to possess 20 or more firearms as defined under NY law outside one’s home or business.