Serious tools earn their place on your belt by proving they can handle the grind—range days, dry-fire reps, tight holsters, and cold mornings. If you’re looking for a do-it-all sidearm that’s ready for modern accessories and built for hard use, this one checks the right boxes without asking for excuses.
FN 509 TACTICAL brings the right blend of precision, control, and modularity in a proven duty-ready package. It’s a Certified Used Firearm in very good to excellent condition—vetted, squared away, and priced so you can put the savings into training or glass.
Why this pistol earns a place in your kit
Built by Fn, the 509 lineage has a reputation for reliability under pressure. This Certified Used example stays true to that standard—only selected in very good to excellent condition—and it brings the kind of feature stack that actually matters. This is a Semi Auto with modern ergonomics and controls that reward disciplined reps and fast problem-solving.
Optic-ready from the factory
The slide is cut for optics and includes optic plates, so you can mount today’s leading miniature red dots without a trip to a gunsmith. That matters when time, money, and zero retention are at stake. Your optic sits low, and the optic-height night sights co-witness cleanly, giving you a daylight-fast sight picture and a dependable reference in low light.
Ambidextrous controls that actually help
Ambi mag release and ambi slide lock/release aren’t buzzwords here—they’re practical. Whether you’re left-handed, working strong-to-support transitions, or running manipulations from awkward positions, mirrored controls keep the gun nimble and safe. It’s built for real training, not just bench handling.
Threaded barrel with protector
The threaded barrel, complete with a thread protector, opens the door to running a muzzle device when you want it and protecting your threads when you don’t. That’s range-friendly and duty-smart, giving you flexibility without compromising reliability or accuracy. It’s a small detail that provides big payoff when you decide to expand capability.
Certified Used confidence
Buying used should never feel like a gamble. With the Certified Used stamp on this pistol, you’re getting a firearm that’s been held to a high, consistent standard—only very good to excellent condition makes the cut. And if it’s not what you expected, there’s a no questions asked return policy backing your decision. That kind of assurance is rare and valuable when you’re trusting gear to perform.
What’s in the box
The package is practical and complete: original box, soft case, manual, backstrap, optic plates, and two magazines—one compact 12-rounder for tighter carry profiles and one extended 24-round magazine for training days or when capacity is king. Swap the backstrap to fine-tune your grip, mount your optic, confirm zero, and you’re in the fight. The accessories aren’t filler; they’re mission-focused and ready to go.
Ergonomics and handling
Run this pistol and you’ll notice the balanced recoil impulse and predictable tracking. The frame geometry and texture lend solid control without tearing up your hands over long sessions. The ambi slide lock makes administrative handling clean and mirrorable, which is a force multiplier when you’re teaching others or drilling support-hand-only work. The pistol lives in that sweet spot between duty ruggedness and everyday carry practicality.
Duty DNA with modern upgrades
Fn designed the 509 family for real-world use. The optic-ready slide, tall night sights, and ambidextrous controls aren’t added to impress—they’re integrated so you can fight from the draw to the last round with clarity and consistency. Model details may vary across the 509 line, but the core reliability, parts support, and proven track record are what you’re buying into here.
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Value that favors training
At $759.99, this Certified Used pistol is positioned for people who value reps over flash. The money you save turns into ammunition, range time, and a few weekends of coursework—the things that actually build capability. The included optic plates and magazines mean fewer add-ons before you’re operational. It’s a smart way to build out a practical, reliable system without overspending.
Night sights and low-light advantages
Optic-height night sights matter after the sun dips. Whether you’re verifying a sight picture on a dark range or checking alignment from concealment, these sights give you a steady point of reference. Paired with a quality pistol light and a mounted optic, you’ll be ready for the most common real-world conditions.
Magazines for every role
The 12-round magazine keeps the footprint compact for concealment, while the 24-round magazine shines at the range, on the homestead, or in staged roles where capacity supports your plan. Having both out of the gate means you can adapt initialization and training without extra purchases.
Who this pistol serves best
If you carry daily, the footprint with the 12-round mag keeps things tidy while preserving full control and sight capability. If you’re a weekend instructor or a serious student, the ambi controls and interchangeable backstrap support varied hand sizes and left-handed shooters without compromise. For home defense, the optic-ready slide, night sights, and capacity options deliver confidence and clarity when stakes are highest.
Set up for success
Your first steps are straightforward: choose your optic using the included plates, confirm torque, verify co-witness with the optic-height night sights, and confirm zero. Run a solid lubrication routine, then function-check both magazines. From there, block time for dry-fire and live-fire to ingrain your draw, presentation, and reload cadence. This pistol rewards disciplined practice with clean performance.
The bottom line
This is a capable, optic-ready Semi Auto from a respected maker, offered as a Certified Used Firearm with a no questions asked return policy. It includes the right accessories to get you running on day one, and it’s priced to prioritize training—where performance is actually earned. If your standard is reliability, adaptability, and clean execution under pressure, this one fits.
People Also Ask
What makes this product stand out from competitors?
This product offers superior quality and innovative features that set it apart in the market. Its design focuses on both performance and reliability, making it a top choice for professionals and enthusiasts alike.
Is this product suitable for beginners?
Yes, this product is designed with user-friendly features that make it accessible to beginners while still offering advanced capabilities for experienced users.
What warranty or support is available?
The product comes with comprehensive warranty coverage and excellent customer support to ensure your satisfaction and peace of mind.
How does this compare to similar products in its price range?
This product offers exceptional value for its price point, providing features and quality that typically cost significantly more in comparable alternatives.
What maintenance is required?
Minimal maintenance is required thanks to the product’s durable construction and quality materials. Regular cleaning and occasional inspections will keep it performing optimally.
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