Obama's claims about Internet gun sales are completely false

For starters, the U.S. Postal Service will not mail handguns. Only contract or common carriers (UPS or FedEx) are by law authorized to ship handguns. UPS will not ship a gun from a non-licensed individual to another non-licensed individual. They require shipments of guns to either originate or terminate with a holder of a federal firearms license. You must disclose to UPS that you are shipping a gun. FedEx will also not ship a gun from a non-licensed individual to another non-licensed individual. Just as with UPS, the firearm shipment, at a bare minimum, must either originate or terminate with an FFL. You must disclose to FedEx that you are shipping a firearm.

So no, it’s illegal for violent felons to purchase guns, and online sales and shipping require the involvement of a federal firearm license holder and the use of background checks.