Trijicon Suppressor Night Sight Set, Black Front/Black Rear with Green Lamps for Glock 10mm/45ACP Models INCREASED HEIGHT: Specically engineered to allow use with a suppressor or as backup iron sights for a slide-mounted red dot sight, such as the Trijicon RMR INSTANTLY VISIBLE SIGHT PICTURE IN NO-LIGHT AND LOW-LIGHT SITUATIONS: Tritium phosphor- lled glass lamp provides battery-free glow, allowing for a visible sight picture in all lighting situation ENHANCED PROTECTION FROM HEAVY RECOIL AND HARSH CLEANING SOLVENTS: Tritium gas lamps are contained within protective aluminum cylinders and have additional silicone rubber cushioning SAPPHIRE WINDOW: Each Trijicon tritium lamp is capped with a sapphire jewel which helps to evenly distribute the light from the tritium lamp as well as protect it from solvents and puncture FITS GLOCK MODELS: 20, 21, 29, 30, 36, 40, and 41 (including S and SF variants)