Have Gun, Will Travel - Season 4 Episode 21 Long Way Home I don't think you got a very good look at this gun while you had it.
Overview: The hunter becomes the hunted. When Paladin captures a former slave turned outlaw, a gang of rough bounty hunters fight to take his prisoner, dead or alive. When Paladin is bitten by a rattlesnake, the outlaw has to choose between saving him and saving himself.