The Agent 3-Dot Tritium Night Sight Set provides enhanced target acquisition in low-light conditions with self-illuminating tritium inserts for reliable performance day and night.Agent 3-Dot Tritium Night Sight SetCompatible with Glock Gen 1-4 9mm pistolsCompatible with Glock G5 10mm pistolsMOS (Modular Optic System) compatible designSelf-luminous tritium dots for low-light visibilityThree-dot sight configuration for quick target alignmentIdeal for tactical applications concealed carry and range shooting where reliable sight picture is critical in various lighting conditions.