Put reliability in your hands when you take aim with the FN 509 9mm Luger Pistol. This 9mm caliber firearm is crafted with a cold hammer-forged stainless steel barrel and a polymer frame with replaceable steel slide rails. The construction is complemented with fixed 3 Dot luminescent sights, a fully ambidextrous slide stop lever and magazine release and a MIL-STD-1913 accessory mounting rail.