With a thinner front post, a glow-in-the-dark, photoluminescent-painted front outline and a “U” notch rear, Trijicon HD XR™ Night Sights give your FN pistol the next level of iron sight …

Trijicon HD™ Night Sights are designed to give your FN America® pistol faster target acquisition in low-light and no-light situations.

Upgrade your FN 509 with XS Sights, offering FN 509 sights, night sights, and suppressor sights with several color options and sight pictures for enhanced accuracy and visibility in low light. …

At FN Specialties, we offer a curated selection of optics, lights, and lasers chosen for their effectiveness and reliability. Enhance your FN firearms with components that improve …

OpticsPlanet provides a wide assortment of accessories for FN handguns including holsters, lights, grips, laser sights, night sights and more! Check out a number of our FN accessories …

The 509® Night Sight Set features the same frontand 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, …

MGW offers replacement magazines, muzzle devices, sights, frame upgrades and more for these larger-caliber-versions of the classic 509 handgun model. Outfit your FN 510/545 with quality …

MGW offers replacement magazines, barrels, slide assemblies, sights, triggers, springs, pins and more for these handgun models. Outfit your FNX-9/40 with quality OEM and aftermarket parts …

TruGlo TG13FN2A TFX Day/Night Sights FN 40 Tritium/Fiber Optic Green w/White Outline Front Green Rear Black