I found the mos efficient way to illuminate my pistols and rifles sights was a product called
super phosphorescent from "
glow-on.com".
Tritium was not an option since only some weapons can be equipped with it, the same for laser beams, plus it can be expensive if you have several pistols laying around.
Check my pictures and make your own conclusions, my two cents. Just have to be careful when you apply it, or big surprise! Your fingers glow in the dark when you go to bed
