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FN 509 LS Edge™

Available for commercial, law enforcement, and military.

MSRP: $1,629

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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. The newest Long Slide from FN is the most advanced striker fired 509 handgun available. Each high-performance feature was critically chosen to give you every advantage. Chambered in 9mm Luger and tested with a million of rounds of live fire, it’s equally at home defending freedom, or crushing the competition at a match.

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FN 509 LS Edge™ Sell Sheet

FN Optics Mounting System Quick Setup & Reference Guide


66-100843FN 509 LS EDGE BLK/GRY 3X17845737013141
66-100940FN 509 LS EDGE BLK/GRY 3X10845737013158
20-100478FN 509 EDGE 9MM MAG 17RD GRY845737012267
20-100479FN 509 EDGE 9MM MAG 10RD GRY845737012274
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  • Caliber: 9mm
  • Operation: Double-action
  • Mag Capacity: 10 or 17 Rd
  • Weight: 31 oz.
  • Barrel Length: 5"
  • Overall Length: 8.2"
  • Twist Rate: 1:10" RH
  • Height: 5.9"
  • Width: 1.35"
  • Trigger Pull: 4.5 lb. -6.7 lb.
  • Sight Radius: 6.7"


Optimized long slide with patented optics mounting system

Flat-face trigger breaks cleanly at 90°

Enhanced ergonomics and adaptability fits all shooters


Long Slide recovers immediately, tracks perfectly

Lightening cuts reduce weight and improve balance speeding follow up shots

New, perimeter frame texture enhances grip, wet and dry

Two, interchangeable backstraps fits all hand sizes, mitigates felt recoil


5” target-crowned, hammer forged barrel for tack-driving performance

Flat-face, facet-edge trigger breaks cleanly.

New, conical striker reduces 509 trigger pull weight by ~1-lbs.

Precision fiber optic front sight co-witnesses with MRD, blackout rear notch


Best-in-class Low-Profile Optics Mounting System™ fits most common MRDs

Oversized, ambidextrous slide stop

Long-wearing graphite PVD finish

Compatible with 24-round FN 509 magazine

Mil-Std 1913 rail fits all common weapon lights

Polished chamber and ramp for reliable feeding and extraction across ammunition types


Three, 17-rd magazines, graphite anodized aluminum floor plates drop faster

Flared, graphite anodized aluminum magwell speeds mag changes under stress

Oversized, knurled magazine release for instinctive operation

Trigger breaks at 90°, short takeup and positive reset speeds follow-up shots

6.7″ sight radius with .040″ fiber optic sight post finds targets and transitions faster


Ballistic case

Four MRD Mounting Plates

Two interchangeable backstraps

Three 17-round magazines or Three 10-round magazines

Owner’s manual

Locking device