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FN 509® Tactical

Available for commercial, law enforcement, and military.

Optic not included

MSRP: $1,104.00

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The FN 509® Tactical, an extension of the FN 509 family, is based on FN’s submission pistol that the U.S. Army tested for its Modular Handgun Trials, but includes the significant improvements to the design that were implemented in the FN 509. The pistol features the company’s U.S Patent No. 10/352,654 Low-Profile Optics Mounting System™ that enables the platform to accept more than ten commercially-available miniature red dot (MRD) optics that co-witness with the suppressor-height night sights and remain adaptable to future optics releases with no requirement of direct milling of the slide. The slide cap, for use when not shooting with an optic, has raised sight wings that protect iron sight alignment if the pistol is dropped or jostled, and provides a textured ramp for racking the slide against a belt loop, pant pocket or boot. An FN-signature 4.5-inch, cold hammer-forged, stainless-steel barrel with target crown, ½” x 28 threads that accept the bulk of 9mm suppressors available and thread cap with integrated O-ring to prevent loosening during use complete the top end. Lastly, the 24-round magazines, nearly identical in length to the pistol’s slide, maximize ammunition capacity without impacting carry convenience.

FN 509® Tactical Sell Sheet

FN Optics Mounting System Quick Setup & Reference Guide-2019

66-100373FN 509T NMS FDE/FDE NS (1) 17-Rnd (1) 24-Rnd845737009137
66-100383FN 509T NMS FDE/FDE NS 2X10845737009144
66-100375FN 509T NMS BLK/BLK NS (1) 17-Rnd (1) 24-Rnd845737010119
66-100527FN 509T NMS BLK/BLK NS 2X10845737010195
20-100032-3 FN 509 9mm Mag 24RD845737009793
20-100346-1 FN 509 9mm Mag 17RD FDE845737010089
20-100346-2 FN 509 9mm Mag 10RD FDE845737010096
20-100032-1 FN 509 9mm Mag 17RD BK845737007768
20-100032-2 FN 509 9mm Mag 10RD BK845737007775
Shop FN 509 Accessories

The FN 509® Tactical
| Product Overview


The FN 509® Tactical | Commercial


  • Caliber: 9mm
  • Operation: Double-action
  • Mag Capacity: 10 or 17/24 Rd.
  • Weight: 27.9 oz.
  • Barrel Length: 4.5"
  • Overall Length: 7.9"
  • Twist Rate: 1:10" RH
  • Height: 5.75"
  • Width: 1.35"
  • Trigger Pull: 5.5 - 7.7 lb.
  • Sight Radius: 5.79"


Striker-fired autoloader

5.5 to 7.7 lbs. Trigger pull

FN Low Profile Optics Mounting System™ (U.S. Patent No. 10/352,654)

Threaded Barrel

Suppressor Height Trijicon 3-Dot Green Tritium Night Sights


FN Low Profile Optics Mounting System™ (U.S. Patent No. 10/352,654)

Sight Protecting Slide Cap

External extractor; loaded chamber indicator


Cold hammer-forged stainless steel

Recessed target crown

Polished chamber and feed ramp

1/2” x 28 threaded Barrel

O-Ring retention thread cap


Polymer construction with replaceable steel frame/slide rails

Enhanced grip texture which enables faster follow-up shots in all conditions

Interchangeable backstraps

MIL-STD-1913 accessory mounting rail


Fully ambidextrous slide stop lever
and magazine release


High visibility, low-friction follower;
polymer base with black finish


Two interchangeable backstraps

One 17-round and one 24-round magazines or Two 10-round magazines

Owner’s manual

Locking device

FN logo soft pistol case