FN509 LS Edge

The FN 509 LS Edge is the "Long Slide" flagship of the 509 family. Developed with input from elite shooters like Dave Sevigny and Tim Kennedy, it is a high-performance, out-of-the-box "race gun" designed for competition, duty, and home defense. It takes the battle-proven 509 action and refines it with a 5-inch target barrel and a lightened slide for extreme speed and precision.

Key Design Elements

• Long Slide with Lightening Cuts: The extra slide length provides a massive 6.7-inch sight radius, making it much easier to achieve long-range accuracy. The aggressive "scalloped" lightening cuts serve two purposes: they reduce the slide's reciprocating mass (resulting in less muzzle flip) and provide extra grip for press checks.

• The "Flat-Faced" Trigger Upgrade: Unlike the hinged trigger on standard 509s, the LS Edge features a factory-installed flat-faced trigger that breaks at a clean 90-degree angle. Combined with a new conical striker, it reduces the pull weight by approximately 1.5 lbs compared to standard models, usually breaking around 4.0–5.0 lbs.

• Sandpaper-Style Grip Texture: Moving away from the traditional "pyramid" texture, the LS Edge frame features an extremely aggressive, sandpaper-like texture. It is designed to lock the gun into your hands during rapid fire, though it can be quite "bitey" for bare-skin concealed carry.

• Flared Aluminum Magwell: To support lightning-fast reloads under the clock, the LS Edge comes with an integrated, graphite-anodized aluminum magwell.

• Graphite PVD Finish: The slide and baseplates are finished in a unique Graphite PVD, which offers superior wear resistance and a high-end matte-gray aesthetic that contrasts with the black polymer frame.

• Optics-Ready (MRD): It utilizes FN's patented Low-Profile Optics Mounting System, which fits nearly every major micro red dot on the market and allows them to co-witness with the included fiber-optic front sight.

LS Edge vs. CC Edge

While both are part of the "Edge" premium series, they serve very different roles:

Technical Specifications

Shooter's Note: The LS Edge frame is technically a "Midsize" frame modified to accept the bolt-on magwell. This means it uses 17-round magazines with specific weighted aluminum baseplates. Standard full-size 509 magazines will not fit without removing the magwell.