The TruGlo TG13FN2A TFX handgun sights pair Green Tritium and Fiber Optic technology to deliver unmatched visibility in all lighting conditions, day or night, with a white outline on the front sight for rapid target acquisition and a Green Tritium and Fiber Optic rear sight that keeps alignment precise in dynamic shooting. Built with Fully Protected TFO technology, this sight configuration is encapsulated in an almost indestructible design that is impervious to oils, chemicals, cleaning solvents, and ultra-sonic cleaning processes, ensuring longevity under demanding field use. The system uses quality Swiss tritium for maximum brightness and always glows in the dark without batteries, while the concealed fiber front remains discreet against the target for clean sight alignment. Fortress Finish provides a permanent protective coating, enhancing durability and resistance to wear, and the snag-resistant design supports quick, smooth presentation from standard holsters. Patented and designed for handgun reliability, these Truglo sights are a trusted choice for precision-focused shooters who demand clear sight pictures, consistent performance, and rugged construction in a compact, maintenance-friendly package.