Guys, or girls I guess, I have a quick question I hope someone can answer for me.

I am in the middle of doing a trade with someone through the mail. They sent me a money order and a copy of their dealers FFL paper work. My question is what EXACTLY do I need the FFL paperwork for? Do I need to show the post office so they can verify it is going to a registered dealer, or do I need to send it inside the package, or does it need to go on the package? My post office has never mailed a firearm before so they don't really know either.

I need to mail them later today so I need to know what to do with the paper work. I also need to get the same paperwork from my dealer because he is shipping me a gun as well.

Any help would be appreciated.

Thanks,
Paul