Re:
Quote:
I cant refund shipping for any reason...

What he means is that he can, but he won't. He owes you the shipping cost. If I were in your buyer's position, I'd give the seller a bit of time to see the error of his ways, and then I'd find ways to make his life miserable. The fine gun community is pretty small, so you as a gunsmith probably don't want to do this, but your buyer certainly can.