It really depends. As was said Gunbroker and such give you a rough idea of what people think they're worth retail. But it's regional, it's what the buyer thinks it's worth. Ferinstance a nice center fire semiauto might show a good bluebook (or whatever) price but won't sell for anything reasonable around where I am because all semiautos get slandered as jam-o-mmatixs. I know a guy that buys/sells in addition to his other businesses. The guy has proven trustworthy and he knows the local market. His quotes are what he can sell it for locally plus a reasonable profit (doesn't do Internet sales). Find a guy like that. Not easy I know.
