A nonlicensee may ship a firearm by a common or contract carrier to a resident of his or her or her own state or to a licensee in any state. A common or contract carrier must be used to ship a handgun.
In addition, federal law requires that the carrier be notified that the shipment contains a firearm or ammunition, prohibits common or contract carriers from requiring or causing any label to be placed on any package indicating that it contains a firearm and requires obtaining written acknowledgement of receipt.
[18 U.S.C. 922(a)(2)(A), 922(a)(5), 922(e) and (f); 27 CFR 478.30 and 478.31]