The Truglo TG131GT2 TFO Green/Tritium/Fiber Optic Front Sight-Green/Tritium/Fiber Optic Rear Sight for Glock 20/21 delivers a seamless, glow-ready sighting solution built for rapid target acquisition across varying light conditions. Utilizing Truglo patented T.F.O. technology, this high-contrast system provides an unbelievable transition through day, dusk, and darkness by combining reliable tritium illumination with a concealed fiber optic front, ensuring the target remains clear without revealing your sight profile. CNC machined steel construction offers durability and precision, while the green front and rear sights provide consistent visibility in low light, enabling quicker, more confident aiming. The concealed fiber cannot be seen by the target, enhancing concealment and reducing snag potential for smooth, unhindered draw and presentation. Designed to fit Glock models 20/21 as well as several popular frames, it accommodates standard holster configurations and supports fast, repeatable sight alignment. In the field or at the range, the Tritium/Fiber Optic combination delivers a reliable, all-light performance that hunters and shooters can trust for accurate, ethical shooting in varying conditions.