You need to ship to an FFL with his signed License in the package. Otherwise you risk a bunch of things that you don't want from the government. Now, if you sell the firearm within the state you live in and the guy shows up at your house....take the cash and hand him the gun. I have had the best luck sending firearms through the post office......The feds don't jibber with the feds! That's my take ....good luck, Rick.