Serial Number: GKS0108347. Excellent condition, like new. Bore is bright and shiny. 

This FN 509 was features a 4.5" threaded barrel, black polymer frame, optic base plate cutout slide, Trijicon night sights, ambidextrous slide release & magazine release, under barrel rail for accessories, and has a textured grip. Comes with (1) 17rd magazine & (2) 24rd extended magazines, and the preinstalled Leupold DP-Pro red dot sight, manufacture's soft case, soft recoil spring for suppressed fire, optic plates, and manual.