 Contrasting orange front sight FOCUS LOCK ring for even faster focus. Unmatched visibility in all shooting conditions 24/7. Machined and assembled in the USA with quality Swiss tritium for maximum brightness. Glows in the dark No batteries or light exposure required. Angled rear sight edge for emergency one-handed operation. U-notch rear sight for increased speed and accuracy. FORTRESS FINISH nitride protective coating. Evaluated and recommended by National Tactical Officers Association (NTOA) field testers. Fits most standard holsters - Fully protected TFO technology encapsulated in a virtually indestructible configuration - Impervious to oils - chemicals - cleaning solvents and ultra-sonic cleaning processes - Provides great visibility in all shooting conditions - Utilizes quality Swiss tritium for maximum brightness - Front sight FOCUS-LOCK for fast and accurate shooting - Angled rear sight edge for emergency one-hand operation. Fits the following model Taurus Firearms: G3c G3 GX4 FOR G3 MODELS WITH STEEL FACTORY SIGHTS. WILL NOT WORK ON POLYMER SIGHT MODEL.