If you do a Google search on "buntline 16 inch barrel", you can find some references to revolvers with extra long barrels. Colt made at least one model with a 16 inch barrel, Uberti makes them and Chiappa as well. It just depends on how much you want to spend and what you will be satisfied with. I know that everyone is entitled to their own likes and dislikes but if I wanted a short barreled gun with a shoulder stock, I would find a lever action carbine. Easier to operate, larger cartridge capacity and no hazards to hands or face. And no convoluted legal questions.
- - -Buckspen