Colt trooper MK III vented rib...........anybody seen one. I was at a gun show last weekend and flagged down a guy selling a minty python in the crowd, and 45 minutes later I was $hitting my pants in envy of this guy's collection. Long story short he doesn't have a computer, but has a lot of questions. Apparently he bought a bunch of troopers in the '80s and one of them has a vented barrel. We were both wonderning if this was a transitional piece, and what parts were combined to make this gun. From what I hear this piece is NIB. Sorry I don't have pics.