FN 509

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FN 509 Gun Stats

FN 509

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Built to handle military level engagements, the FN 509 full size pistol is a rigorously tested sidearm with the power and performance to take you through any scenario. The double action FN 509 fullsize pistol features a cold hammer forged stainless steel barrel, luminescent 3 dot sights, front and rear slide serrations, an under-mounted Picatinny rail for aftermarket accessories, an enhanced grip with interchangeable backstraps, a fully ambidextrous slide stop lever and magazine release, and plenty of ammo capacity with two 17 round magazines included. With unrivaled reliability and durability, this 9mm handgun from Omaha Outdoors is superior firepower you can rely on for a lifetime of uncompromising service.

FN 509 Specs

1 Category

Technical Data


9mm Luger (9mm Parabellum) (9x19mm)


Double Action





Gun Type



3 Dot

Barrel Length



26.5 oz




1.35 Inches


5.5 Inches

FN 509 Features

The FN 509 was a competitor for the US Army’s XM17 MHS competition and met many of the design criteria including its striker-fired trigger, modular grip and its ability to accept lasers and flashlights.  It operates on a short-recoil, tilting-barrel action with a 4 inch barrel in a slide that can be built with an optics cut for mounting red dots and other optics.  

FN 509 Ballistics

9mm Luger (9mm Parabellum) (9x19mm) Ballistic Data
Range (Yards) Drop (inches) Velocity Energy Wind drift (inches) Time (milliseconds)
0 0 0 0 0 0
50 0 0 0 0 0
100 0 0 0 0 0
150 0 0 0 0 0
200 0 0 0 0 0
250 0 0 0 0 0
300 0 0 0 0 0
350 0 0 0 0 0
400 0 0 0 0 0
450 0 0 0 0 0
500 0 0 0 0 0

FN 509 Capacity

The FN 509 is chambered in 9x19mm Parabellum and feeds from double-stack, single-feed magazines.  In its full-size configuration, the 509 has a standard magazine capacity of 17 rounds, though magazines limited to 10 rounds are available for users in states that have capacity restrictions.

FN 509 Ergonomics

The FN 509 has fully ambidextrous fire controls that require no tools or disassembly in order to switch between left and right handed use.  The magazine release is centered along its travel and can be pressed from either side to drop a magazine, and the slide stop is made of a single piece of metal that stretches to both sides of the gun.  The back straps can be switched out with simple tools, and the grip texturing provides excellent control both with and without gloves.

FN 509 Fit & Finish

The FN 509 is built on a polymer frame and has a stainless steel slide and barrel that feature a proprietary black finish that prevent damage from weather and wear.  This pistol is available in all black, desert-tan and two-tone with a tan frame and black slide.  
Fit and Finish

FN 509 Concealability

Measuring 7.5 inches long, 5.56 inches tall and 1.35 inches wide, the FN 509 is not necessarily easy to conceal.  Designed to be carried in an open-carry setup, the only effective way to conceal this gun would be with the use of heavy clothing or carrying it in a shoulder holster.  If carrying at the 1 or 3 o’clock positions, be sure to wear an undershirt as the grip texturing can cause some irritation.

How much is a FN 509 worth?

In 2023 a new or used FN 509 value varies depending on supply and demand. In the last 12 months there is great demand for a FN 509 and most semi-auto pistols. The Price for a FN 509 has increased in cost by $0.00 in 2023 compared to 2022.

Estimated New and Used Values for a FN 509 Values are based on a basic model with no options or colors.

Condition Trade-In Private Party Dealer
New In box $374.15 $489.27 $575.61
Excellent $345.37 $460.49 $518.05
Very Good $316.59 $460.49 $518.05
Good $287.81 $431.71 $489.27
Fair $201.46 $374.15 $460.49
Poor $143.90 $287.81 N/A

Gun Value Conditions explained:

New in box - 100% condition in unopened box. Excellent - 95%+ condition with or without box.

Very Good - 90% - 95% condition (all parts/finish should be original).

Good - 80-90% condition (all parts/finish should be original).

Fair - 30% - 80% condition, parts, and finish may or may not be original. Must function properly and shoot.

Poor - under 30% condition. Firearm has severe wear and tear, does not function, or is damaged.

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