Chop the 3 in barrel to 1.8 inches. Square the face. 11 degree crown. Round over the outer edge. Shorten the face of the ejector rod 1/16 inch and round over its outer edge.
Nothing ventured.....Nothing gained. Jigged up for a centered and shallow #31 front sight hole. 80 thousands will get me at 3 threads, e.g. 3 to 4 threads is max strength for a threaded fastener. 2 bottoming Taps will be used. One stock lead to start the thread and one with almost all the lead ground off to chase thread clear to the bottom.
Good news. A pair of ancient Marbles SunSpot shotgun beads are on the way from Numrich/Gun Parts Corp and.....there appears to be some lovely walnut under that "made the grips with an ax" pair of grip panels. I might have to clean it all up and rust blue it too.....
Ya must be young. It's called a grip adapter....a dinosaurian method for improving gun grip in the dim times before Amazon! They had shoes for triggers then too and the finest replacement front sight available was the gold patridge blade or real ivory bead.
I wish more pistols had rear sights with extremely wide notches-- idealized for quick shooting at 10 meters
not slow bull's-eye target shooting from 25 and 50 meters.