I know I've done it, and I'm sure most of you have too. Sold or traded off a prized piece of gear, only to want it back later. Most have more than one, lol, myself included. I can think of a few very nice or rare guns and knives I've let go, so I'll start it there. My Les Baer/Para Ordanance SRP, 1 of 272 made I believe.