Do not walk but do run away from this deal. Never send money to anyone who does not give you a real mailing address and a land line and return calls an email promptly. How fast do you think he will answer after he has you money? Bait, switch, fake other interest in a gun to jack up the price, listing a gun on EBay which every legit seller knows is not allowed. This is just trouble from the word one.
Have him send the gun from a FFL to your FFl. Pay the extra dollars. No FFL is going to deal with this level of BS because fraud can cause them to loose their FFL. Fast way to get rid of BS is getting a legit person in the deal on the other end.
I had a deal on GB that seemed legit and ended up being a ripoff. GB did nothing at all to help and when I complained they dinged me. I will never give them another dollar.
By the way I have a single barrel Baker trap gun. Well it was a double barrel but someone ruined the one barrel. I could plug it and let you have this rare gun for the low price of ... . Please hurry the minister of Nigeria has expressed and interest in it and is willing to send me a Certified Check for more than the asking price. I can send him the gun and then return the extra money to him. He has a cousin who can pickup the gun today and give me a certified check. I need to know asap. ASAP in this case means A Sucker Always Pays. Do not be a sucker.