Night Fision Tritium Night Sights for Glock 17/19/34/43/48 - Yellow Front Ring/U Notch Black Rear RiNight Fision Tritium Night Sights deliver reliable low light aiming for Glock enthusiasts. Built for Glock 17 19 34 43 48, they pair a bright yellow front ring with a black U notch rear for a fast, intuitive sight picture in dim conditions. Compatibility: Glock 17 19 34 43 48 pistols Illumination: Tritium based glow for continuous visibility in darkness (no batteries required) Front Sight Color: Yellow front ring to draw the eye for quick alignment