XS Sights Non Tritium Ruger LCR Revolver Standard Dot Orange Front Night SightThe XS Sights Non Tritium Ruger Standard Dot Orange Night Sight is a defensive sight designed to enhance your defense gun. It is compatible with the Ruger LCR (. 22 . 327 9mm). The sight uses a proprietary photoluminescent Glow Dot that absorbs ambient light and glows in low light. The convex dot's additional surface area increases light absorption, intensifying the charge of the Glow Dot. Designed to be large and highly visible, these sights help