Description
The FN 509M Midsize Tactical 9mm 4.5in FDE Bundle 1×15 & 4×24 is a ready-to-run multi-role pistol that bridges the gap between concealed carry and full-size duty performance. Packed with a threaded barrel, suppressor-height night sights, and five magazines—one 15-round and four 24-round—this Flat Dark Earth bundle ships in a soft ballistic case and is factory-prepped for micro red-dot optics. It’s designed for everyday carry, home defense, and service use, and it’s priced at $798.66.
| Manufacturer | FN America (per manufacturer specs) |
|---|---|
| Model | FN 509M Midsize Tactical |
| Material | Stainless steel barrel, polymer frame, steel slide |
| Compatibility | Accepts most micro red-dot optics (RMRcc, Holosun K-series, Shield RMSc, etc.) |
| Finish | Flat Dark Earth (FDE) polymer frame, black nitride slide |
| Weight | 26.3 oz (unloaded, with 15-round magazine) |
| Condition | New |
Key Features
- Optics-Ready Slide — WHY IT MATTERS: The slide is factory-milled to accept common micro red-dot footprints like Shield RMSc and Holosun K-series, so you can mount a dot without sending the slide to a gunsmith.
- Threaded Barrel (1/2-28) — WHY IT MATTERS: The 4.5-inch barrel is threaded for compensators or suppressors, giving you flexibility for range use, home defense, or quiet shooting.
- Suppressor-Height Night Sights — WHY IT MATTERS: These tritium sights cowitness with a red-dot or let you see the front sight in low light, even with a suppressor attached.
- Five-Magazine Bundle (1×15 & 4×24) — WHY IT MATTERS: You get a flush-fit 15-round mag for concealed carry plus four 24-round extended mags for training, competition, or duty—no need to buy extras.
- Interchangeable Backstraps — WHY IT MATTERS: Three backstraps let you adjust grip circumference to fit your hand size, improving control and accuracy for new and experienced shooters alike.
Who It’s For
This bundle is for the shooter who wants one pistol that does it all: carry, home defense, range training, and duty. It’s a solid pick for new gun owners who want a do-it-all 9mm without buying separate guns for each role. Experienced shooters will appreciate the optic-ready slide and extra magazine capacity for classes or matches.
Pros & Cons
- Pro: Five magazines included—saves you $100+ compared to buying extras separately.
- Pro: Factory optics cut means no aftermarket milling or adapter plates needed for most micro dots.
- Con: The 24-round magazines are tall and may print more during concealed carry; you’ll likely use the 15-rounder for daily carry and the big ones for training or home defense.
Comparison
| Feature | FN 509M Midsize Tactical | Zev Technologies OZ9 Compact | Glock 19 Gen5 MOS |
|---|---|---|---|
| Barrel Length | 4.5 in (threaded) | 4.0 in (threaded available) | 4.02 in (non-threaded) |
| Optic Ready | Yes (micro footprint) | Yes (RMR/Holosun) | Yes (MOS system) |
| Magazine Capacity | 15 & 24 rounds | 15 rounds | 15 rounds |
| Price | $798.66 (bundle) | $1,200+ (base) | $600+ (base, no extra mags) |
| Suppressor Ready | Yes (threaded barrel) | Optional | No |
What does the FN 509M Midsize Tactical bundle include?
It includes the pistol with one 15-round magazine and four 24-round magazines, a soft ballistic case, three interchangeable backstraps, and a cable lock. The slide is pre-milled for micro red-dot optics, and the barrel is threaded 1/2-28.
Is the FN 509M Midsize Tactical good for concealed carry?
Yes, with the 15-round magazine it’s a compact grip length that conceals well under a cover garment. The 24-round magazines are better for home defense or range use. Many owners carry it with the flush 15-rounder and keep the extended mags for reloads.
Which red-dot optics fit the FN 509M Midsize Tactical?
The slide is cut for common micro footprints like Shield RMSc, Holosun 407K/507K, and Trijicon RMRcc. It may require adapter plates for other footprints, but most micro dots in the compact category will mount directly.
Does the FN 509M Midsize Tactical have a manual safety?
No, this model does not include a manual safety. It relies on the trigger safety, firing pin block, and drop safety. Some owners prefer this for carry, while others add an aftermarket safety—check your local laws and comfort level.
✅ Nationwide delivery (all 50 states) — ✅ Ships 1-2 business days — ✅ 30-day returns — ✅ Secure checkout
Last updated: April 2026
Browse more Semi Auto Handguns or check out our FN Handguns and Optics-Ready Pistols.
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