FN 509 Tactical 9mm
Model: 66-100373
FN 509 Tactical 9mm
Model: 66-100373
Full Specifications
Threaded 1/2x28 barrel: compare pistol suppressor prices.
About This Firearm
The FN 509 Tactical is a full-size striker-fired 9mm built for duty and suppressed home defense. It has an MSRP of $989, and FN based it on the pistol it put into the US Army's Modular Handgun Trials, then threaded the muzzle 1/2x28 and fitted suppressor-height Trijicon green tritium night sights.
The Low Profile Optics Mounting System uses plates to take more than ten commercially available micro red dots, so the slide is never committed to one footprint. With no dot fitted, a slide cap with raised wings protects sight alignment if the pistol is dropped and gives a textured ramp for racking the slide off a belt loop or a boot. A 17-round magazine and a 24-round magazine come with it, along with two backstraps, a lock and a soft case. The slide stop lever and the magazine release are fully ambidextrous, the thread cap carries an O-ring so it does not back off, and FN gives the trigger as a 5.5 to 7.7 lb range.
If you're cross-shopping, the FN 509 Compact Tactical does the same job in a shorter package, 12 rounds and 26.2 oz on a 4.32-inch barrel for an MSRP of $914, with the same thread and the same plates. A Walther PDP Pro SD Full Size 5.1" holds 18 rounds behind a longer barrel at 27.0 oz for an MSRP of $999, so the choice there is barrel length against FN's plate system.
Best For
Strengths & Limitations
- Nothing else has to be bought to run it suppressed, because the thread and the tall sights are both there from the factory.
- FN holds a patent on the mounting system, so the plates are a designed interface and not a workaround.
- The frame is Flat Dark Earth on this configuration with the stainless slide left black, which hides holster wear better than a single dark finish.
- The plates stack the dot higher than a milled cut would, which is why the sights have to be suppressor height in the first place.
- The optic is still a separate purchase at this price, and a can on top of it is a tax stamp away.
- The trigger is given as a range, and the top of it is heavy for a pistol in this bracket.
Category Rankings
How the FN 509 Tactical 9mm ranks among full-size 9mm Luger handguns.
Compare FN 509 Tactical 9mm
See how the FN 509 Tactical 9mm stacks up against similar firearms.
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Frequently Asked Questions
Can the irons be seen through a mounted dot?
Yes. The suppressor-height sights co-witness through the window of the optic, so a dead battery still leaves something to aim with.
Does FN still sell a plain full-size 509?
Yes. The FN 509 has an MSRP of $639 with a 4.0-inch unthreaded barrel, luminescent sights and no optic cut, so most of the difference here is the thread, the sights and the plate system.
What is the slide cap for?
Shooting the pistol with no optic fitted. It fills the cut, and FN gives it raised wings that shield the iron sights and a textured surface to rack the slide against.
Where is it made?
The United States.
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