New Jersey law prohibits a person convicted of firearm offenses from purchasing, owning or possessing a firearm.
New Jersey Statute 2C:39-7 prohibits any person who has been convicted in this state or elsewhere of the crime of aggravated assault, arson, burglary, escape, extortion, homicide, kidnapping, robbery, aggravated sexual assault, sexual assault, bias intimidation, endangering the welfare of a child, various drug convictions as well
as firearm offenses from purchasing, owning, possessing or controlling
Violation of this section is a crime of the second degree and upon conviction the person shall be sentenced to a term of imprisonment of not less than five years during which time the defendant shall be ineligible for parole.
Because of this law, you would be flagged in every state and prohibited from purchasing a firearm.