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FN 509 LS Edge, Optics Ready, 9mm 17+1, Black/Gray

Product Code : 845737013141

Mfg Item #: 66-100843

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.

  • CALIBER: 9mm
  • OPERATION: Double-action
  • MAG CAPACITY: 10 or 17 Rd
  • WEIGHT: 31 oz.
  • 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 

Owner’s manual

Locking device

Not California, New York, New Jersey, Colorado, or Massachusetts compliant. Please confirm local state compliance before purchasing.

Must be sent to an FFL.

Shipping includes insurance. Hawaii and Alaska will pay actual shipping cost.

Determined at checkout.

Some US states prohibit perceived advertising or marketing of firearm related products to persons under 18 years of age.

Please verify that you are at least 18 years of age.