Night Fision’s Night Sight Set for the FN 509 provides tritium-illuminated aiming points intended for low-light and reduced-visibility use. The set pairs an orange front sight with a square notch rear designed for FN 509 pistols. A domed lens collimates tritium rays to produce a crisp, defined glow, and the design centers on secure tritium retention. CNC machined steel components with a black nitride finish are used to improve wear and corrosion resistance, and installation is recommended to be performed by a qualified gunsmith.
Key Specifications
- Includes orange front sight for fast front-end acquisition.
- Features a square notch rear to align with the front sight.
- Built with a domed lens that collimates tritium for a sharper sight picture.
- Uses Swiss tritium as the luminous source.
- Components are CNC machined steel for structural durability.
- Finish is black nitride to enhance wear and corrosion resistance.
- Design includes an injection molded sleeve to securely hold tritium vials.
- Manufacturer states these are among the brightest tritium night sights in their line.
- Installation is gunsmith recommended to ensure proper fit and function.
- Assembly is built in the USA.
These sights are purpose-built to improve sight picture and target acquisition in low-light conditions while maintaining durable, serviceable construction. The combination of a high-visibility orange front, precision rear notch, and tritium illumination makes this set a practical upgrade for informed shooters seeking reliable performance from their FN 509 platform.
