Upon judgment of conviction of any offense which would require the seizure of firearms, shotguns or rifles from an individual so convicted, and the revocation of any license or registration issued pursuant to article four hundred of the penal law, the judge pronouncing sentence shall demand surrender of any such license or registration and all firearms, shotguns and rifles. The failure to so demand surrender shall not effect the validity of any revocation pursuant to article four hundred of the penal law.
New York Legal Code