A Home made B-4-2/XS B-3 sight adjusting tool.
If any of you have a B-4-2 or a XS B-3 you will notice that the front sight needs a special tool for adjusting. I made this tool from a piece of 3/8" steel rebar. To make the slot for the sight I used a electrical jig saw with a metal cutting blade. I then took a grinder and grinded down the sides, so the the tool would fit in the hole of the front sight.