I don't know if anybody has ever come across it but I was messing around with the Unreal Editor and I decided to open the Serpentine.u file from the "System" directory. Anyways, I noticed that among all the images of the skins for stuff, there was one for a revolver. Just go into the game and type: summon serpentine.su_blackhawk
It is an unfinished weapon but you can at least look at it.
It is an unfinished weapon but you can at least look at it.