XS Sights Tritium White Standard Dot Night Sight for Ruger LCR with Photoluminescent Glow DotThe XS Sights Tritium White Standard Dot Night Sights are defensive tritium sights designed to enhance your defense gun. This accessory is compatible with the Ruger LCR (. 38 and . 357 only). The sights use 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