FN 509 Night Sight Set Steel Matte 3-Dot Tritium with Front Dot Outline

The FN 509 Night Sight Set features the same front and and rear sight design as the standard sights but with Tritium inserts for low-light target acquisition. The set contains a front and rear sight. FeaturesFeatures Tritium inserts for low-light acquisitionMade from high quality SteelFront and rear sight set Note: These will not fit FNS or FNX series pistols.