I own a bunch of handguns, but there’s only one I found I needed to add paint to the site. It’s a Ruger LCP 380 and I taped off the site and applied some of my fiancé‘s hot pink nail polish. I tried many other colors, but hot pink is the easiest to see for me and I can see the site in very dim light. I have some guns with tritium night sites and if they’re any better it’s not by much.