Night Fision Night Sight Set Yellow Front Square Notch Rear Fn 509

The Night Fision Night Sight Set Yellow Front Square Notch Rear for FN 509 delivers a brightest, high-contrast aiming solution designed for precision and reliability in low-light conditions, combining Night Fision's patented injection molded sleeve design that securely holds Swiss tritium vials in ballistic material and a domed lens that collimates tritium rays for a crisp, defined glow. Built to endure with CNC machined high-quality steel and a tough black nitride coating that enhances wear and corrosion resistance, these sights are engineered for rugged use on handguns and offer a gunsmith-friendly installation that preserves accuracy and durability. Night Fision's approach means more tritium than a typical night sight, providing a brighter, longer-lasting glow that improves target acquisition, especially in dawn, dusk, or nighttime shoots and self-defense scenarios. Produced in the USA with precision and safety in mind, this sight set integrates seamlessly with FN 509 platforms, delivering reliable performance, repeatable alignment, and a clear sight picture that helps you acquire targets quickly without distraction. Ideal for duty, competition, or personal defense, it's a superior upgrade for serious shooters seeking dependable illumination and longevity.