The FN 509 LS EDGE is the ultimate tactical pistol. Made for the most demanding environments where split-seconds matter and holding the advantage in your hands is a must have. With a crisp and flat-faced trigger, flared aluminum magazine well and lightening-cut Long Slide, these in-factory enhancements compliment the FN 509 Low-Profile Optics-Mounting System and fiber optic sight package to help shooters master firearm control and build expert marksmanship.