TRUGLOs TFX Pistol Sight features TFO technology that combines glow-in-the-dark Swiss Tritium and fiber-optic for exceptional brightness under all conditions without the need for batteries. White Focus Lock ring on the front sight increases low-light visibility and makes rapid target acquisition easy. CNC-machined-steel construction delivers precise tolerances ensuring model-specific fit. Fortress finish provides permanent protection for durability. Hermetically sealed FTX capsule protects delicate tritium and fiber optics from oils, chemicals and cleaning solvents. Tested by law-enforcement personnel for proven performance and reliability. Manufacturers 12-year limited warranty. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Color: White. Type: Pistol Sights.