Possession of Unregistered Firearm Law and Legal Definition
26 USCS § 5861 (d) makes it a Federal crime or offense to receive or possess a firearm which is not registered to him in the National Firearms Registration and Transfer Record.
In order for a person to be guilty of the offense, it should be proved beyond reasonable doubt that the person possessed a "firearm; and the "firearm" was not at that time registered to the person in the National Firearms Registration and Transfer Record.