Yesterday I bought some bright orange, maybe flourescent, it was the brightest I could find, nail polish. $2.99 so if I don't like it Im not out much.
With the older eyes I find those black sights on my Super Blackhawk a challenge. And since it's 30 years old there is no good option for changeing out the front sight.
I also build and shoot flintlocks and those sights dissappear quick in the evening woods. So, I've been thinking about this for awhile.
I have the full set of "Bright Sight" paint and gave it a good try. I don't like it. It never really hardened on the sight, sorta rubbery, and while visible it didn't last and wasn't real bright to start with. That was on a flintlock with great care being taken with the front sight.
I just can't see it standing up to the wear from a holster. But nail polish is tough stuff and it should do the trick. I'll find out this weekend.