Night Fision Night Sight Set Orange Front Square Notch Rear for FN 509

Night Fision's patented, injection molded sleeve design holds their tritium vials securely in place using ballistic materials. Night Fision night sights carry more tritium than the average night sight on the market and a domed lens engineered to create a crisp, defined glow.Features:Brightest Tritium Night Sights on the marketDomed lens collimates tritium rays for a sharper sight pictureCNC Machined out of high quality steelBlack Nitride coating used to improve wear and corrosion resistanceInstallation: Gunsmith RecommendedBuilt in the USA with Swiss Tritium