An idea I had.

I'm not sure if anyone else has ever had this idea, but I'm sure someone has. So the idea is that there's a special revolver, maybe a double action. Only one of it's kind. But here's the catch. Random encounters will happen across the map where people will challenge you to a gun duel and if you lose, the gun is gone. It won't be on your weapon wheel. You'd have to wait for an encounter where you could get it back. Since this seems like a prize worth fighting for, they could call it the Prizefighter Revolver. Thoughts?