The FN 509 Tactical Semi-Auto Pistol with Vortex Viper Micro Red Dot Sight Package delivers superior reliability, impeccable accuracy, and maximum firepower with extended magazines and a full-size frame. Featuring a 4.5″ cold hammer-forged stainless steel barrel with a recessed crown, and a polished feed ramp and chamber, this pistol promises optimal accuracy and ultrareliable performance. The FN Low Profile Optics Mounting System, coupled with the Vortex Viper red dot (included), easily co-witnesses with the all black co-witness iron sights for enhanced point-and-shoot accuracy. The 1/2×28″-threaded barrel readily accepts a variety of aftermarket muzzle devices and suppressors, while the integrated accessory rail readily accepts a variety of aftermarket lights, lasers, and other accessories. Plus, this pistol features an ambidextrous slide stop lever and magazine release, and sports an aggressively texturized grip for a reliable non-slip grip. For a highly reliable, optics-ready package, the FN 509 Tactical Semi-Auto Pistol with Vortex Viper Micro Red Dot Sight is the ideal choice. Includes 2 magazines.