FN 509 LS Edge | 5″ Barrel | FN 66100940

The FN 509 LS Edge is a long-slide, optics-ready pistol built for accuracy and fast follow-up shots in competition and range training. It pairs well with a compact reflex sight such as the Trijicon RMR Type 2 (commonly available well under $1,000) for robust, reliable dot acquisition. The design emphasizes ergonomics, a flat-face trigger, and balance for precision-oriented shooting and action-style competition.

Product Specifications

• The caliber is 9mm.
• The barrel measures 5 inches.
• The overall length is 8.20 inches.
• The height is 5.90 inches.
• The weight is 31 oz.
• The frame material is Polymer.
• The slide and external finish is Graphite PVD.
• The barrel material is Steel.
• The sights are Fiber Optic Front with Blackout Notch Rear.
• The slide features serrations plus optic and lightening cuts.
• The firearm includes a ballistic case, four MRD mounting plates, two interchangeable backstraps, three magazines, an owner’s manual, and a locking device.
• The frame includes a Picatinny rail for lights and accessories.
• The product is configured as full size.
• The rate of twist is 1:10″.
• The UPC is 845737013158.

The LS Edge is built to deliver repeatable performance on the line: optics-ready geometry, a target-crowned barrel, and a flat-face trigger that aids precise shot breaks. Its long slide and lightening cuts improve balance and sight radius, while the optics mounting system accepts common miniature red dot footprints for modern carry and competition setups.

Owners commonly praise the crisp flat-face trigger and the optics-ready slide for easy MRD installation and fast target acquisition.

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