IF... You are planning to ship to an FFL (I assume out of state), I suggest that you contact that FFL and confirm that he/she will accept a shipment directly from you. If YES, then just send the gun by any legal shipping method.. FedEx or UPS are easy.
IF... The receiving FFL will not accept the gun from you (since he/she has no way to verify that you are, in fact, you... They cannot match your ID to your face if you are not standing in front of them)... then Imnotascoolasu's reply on a low-cost local FFL for the origin end of the transaction is
