The rear sight is a recycle from the tool box. It started out life as one of these castings:
Mine is a composite based on pictures of the rear sights of the original Whitson and Jim's kit gun. The ears are wider than those of the other two, but I kinda' liked the look of it. Still need to file the notch, but I usually do that when I go to sight in.
The front site is a standard Cash with copper base and German silver blade (to compliment the German silver rod pipes).
I like the look of a squared off blade instead of the rounded rear.