We all know that many revolvers need a better front sight. The plain ramped front sight on many revolvers is almost invisible to me. Some sights are pinned in place and could be easily changed by the owner if a suitable replacement could be found.
A few places offer fiber optic and tritium for fixed sight S&Ws and Rugers. I measured a few take off sights and I wonder if replacements could be fitted to different revolvers with a little file work and LocTite.
The ones I measured are all .125" wide with a slightly different tenon. The Model 10 in my avatar has a SDM sight cut down on the bottom by Al Greco to the correct height and pinned and LocTited into place.