This is an FN model 509 compact semi-automatic pistol in 9mm Luger caliber. It has a 4 1/8" threaded barrel, 3-dot elevated night sights, light rail, ambi-slide stop, ambi-mag release, and 12 round magazine capacity. This pistol comes with a Vortex Viper red dot sight. It is in nice condition with a clean, bright bore. This pistol comes in an FN zippered softcase with manual, rear sight plate, cable lock, and two backstrap inserts.