Watching a YouTube comparison of an original and a Uberti 1860 Army, I noticed that the hammer screws on both models were flush with the frame. On my Uberti, the hammer screws protrude about 1/4" from the frame. In fact, my trigger finger rubs against one that is rather sharp. I have considered beveling the top of the screw to handle that situation. Why do these screws protrude so far? Did it have something to do with fitting some type of stock to the gun? Can they be replaced with flush-fitting screws?