a Gunsmith friend of mine has recently started offering Improved front sights for the Ruger Blackhawk, Single Six, adjustable sighted bearcat, MK I, II, and III heavy barreled 22 autos and Magnum Research's BFR revolver.
he'll custom cut the sight to your specified height and width and can serrate them as well.
I know a lot of guys that have them and they all say they're a great improvement over the stock sights.
https://fermincgarza.com/
here's a video Lipsey's did on Fermin's sights.
he also does work on cylinders so if you have a revolver with undersized throats he can open them up to the proper diameter.