I think it is really cool to work on a gun. When you fix one with your hands it feels very good. I have only done repairs and made the gun look nice again.. Even that takes a lot of patience and you learn to respect the people who make guns. If you have the tools it is much easier. You need tools, like screwdrivers that work well clamps that hold things in place and a good table to work on. These things make a difference. I want to see what other people have fixed. I especially want to see if they made any tools or devices that made the job easier. Double guns are really interesting. I like to see how people work on them.