I had made a deal with him to trade two new USGI LEO marked 30rd AR15 magazines for a G27 pistol grip. After I PM'd him that I had shipped them out and asked to be notified of when the grip was going out he tells me that he has to "inspect" the magazines first. OK, I buy that and say OK but it would have been nice to have known that up front. So he gets them and says he doesn't want them and is sending them back. It's been over a week, several PM's to him without a reply and no magazines in my mailbox.
I'd make sure you have a clear understanding of the transaction with him before doing any business. Just my opinon.