I have purchased many things on this site and thankfully, here at least, I haven't had any problems. When I sell something I go ahead and send it if the buyer either has a lot of posts or good feedback. I like to trust them just like they are trusting me in sending payment.
So far no one has burned me and if they do, shame on them. I do not want to change the way I treat my fellow gun/hunting enthusiasts because of the occasional bad apple.
Sorry to hear you are having a problem and hope that he does the right thing.