FN 509T 509 Tactical 9mm Black 66-100375


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FNH 509T 9MM 4.5 17RD - SEMI BLK NS   FN America FN 509 Tactical, Semi-automatic, Striker Fired, Full, 9MM, 4.5" Barrel, Polymer Frame, Black, 1-24Rd Magazines and 1-17Rd Magaine, No-Manual Safety, Suppressor Height Night Sights, Low Profile Optics Mounting System, Threaded Barrel, Sight Protecting Slide Cap, Loaded Chamber Indicator, Interchangeable Backstraps, 1913 Accessory Rail, Ambi Slide Stop Lever, Ambi Mag Release, FN Soft Case 66-100375

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.


  • 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 - 7.5 lb.
  • Sight Radius: 5.79"

Primary Features

Striker-fired autoloader

5.5 to 7.5 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 Three 10-round magazines

Owner’s manual

Locking device

FN logo soft pistol case


Categories: Semi Auto Pistols
Condition: New
Manufacturer: FN America
Model: 509T
Caliber: 9mm Luger
SKU: 845737010119
MPN: 66-100375
UPC: 845737010119
Vendor: Gunprime
Reviews (5)
By bdup on 08/22/20
Easy transaction and great price!

Love my FN 509 Tactical, the extended mags are a bonus!

By Art on 08/11/20

I’ve had it for a few weeks and have fired 500 rounds in it and it is one of the best handguns I’ve shot. The best looking 9mm on the market.

By Adam on 06/22/20
Gunprime was amazing!

Seller review: I purchased this black FN 509t on a whim from gunprime due to the price they offered, it was dang near a steal. Gunprime had an amazingly fast turn around time. I placed an order in the afternoon on a Thursday and that evening it was already being shipped to my FFL. I will do business with them in the future and recommend this company to others.

Product review: this pistol is a great deal for what you get. Suppressor height sights, threaded barrel, two 24 round mags, a 17 round mag, an extra spring, a chamber lock, instructions manual, and a soft carrying case. I also was able to snag the free light offer that was going on as well. Straight out of the box I did have some FTE/FTF (failure to eject/failure to feed) issues and that was due to my idiocy. I did not clean the gun before shooting, but after I cleaned it I haven't had a single issue since. You need to clean it or will have issues. I've put about 1k rounds through it and it's a solid firearm. I highly recommend purchasing one if you're on the fence about it.

Reason for 4/5 stars is that while this firearm is amazing, its not my favorite.

One photo is with the light attached, and the other is next to a S&W M&P40 5 inch barrel for size and reference

User uploaded images:

By Jack on 06/15/20
Perfect Handgun

Conceal carrying this handgun. Love this gun! It’s a great weapon and tons of fun to fire.

By Sam on 06/11/20
Quick and easy!

Fast shipping legit place!

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