Trijicon GL201-C-601136 suppressor-height night sights deliver a durable aiming reference for compatible Glock pistols. Three-dot tritium supports alignment in bright or low-light conditions, while the raised profile clears suppressors.They also serve as Trijicon RMR backup irons; green lamps carry a 12-year manufacture-date warranty.White front, metal rear, and green front lampFits Glock models 17, 17L, 19, 22, 23, 24, 25, 26, 27, 28, 31, 32, 33, 34, 35, 37, 38, 39, and 45Tritium phosphor-filled lampsProtective aluminum sleeves with silicone rubber cushioningSapphire jewel for evenly distributed lightChoose durable sights for suppressor-height aiming and backup use.