Calling this "prior restraint" is simply dumb. It is no such thing. Certain classes of people are ineligible to buy guns from dealers. Anyone under 21 cannot purchase a handgun. A person who ahs renounced his U.S. citizenship cannot buy a firearm. A person under indictment cannot buy a firearm. In no case was there a judicial proceeding but the person is disqualified in every one of them.