For rear sights I use Angle Iron, and just cut down to fit the dove tail and cut the height accordingly. For the notch I use a triangular file. Front sight, I cut a nickel in half,(shave the sides smooth) and then, cut it to leave two Posts about 1/8 inch apart and solder it to a copper base. I usually use a soft solder and puddle it and then file and sand to fit. Soft solder is strong enough, Just don't drop it real hard. (like my son did for me after sighting in for deer season) I straightened front sight and resoldered. works just fine. Only took about an hour to fix sight.