FN 509 Midsize Tactical Flat Dark Earth 9mm 4″ Barrel 10-Rounds w/ Holosun 407C
Original price was: $1,116.99.$1,005.29Current price is: $1,005.29.
The FN 509 Midsize Tactical chambered in 9mm is a mission-ready, optics-equipped semi-auto pistol featuring a Flat Dark Earth finish, a 4.5-inch threaded barrel, and a factory-mounted Holosun 407C red dot sight. This tactical variant blends full-sized performance in a compact footprint, boasting a 10+1 capacity, low-profile optic height mounting, and fully ambidextrous controls for adaptability across defensive and professional roles. Packaged in an FN-branded soft case, this pistol is optimized for enhanced versatility, concealment, and combat precision.
FN 509 Midsize Tactical Features
Outfitted with an optic-ready slide and factory-installed Holosun 407C, this FN 509 variant allows for rapid target acquisition in a wide range of lighting conditions. The threaded barrel (1/2×28) offers suppressor compatibility or use with compensators, while the integrated recoil-reducing design supports controlled, accurate follow-up shots. Its flat dark earth polymer frame houses FN’s precision-built fire control group with a trigger safety system, enhancing reliability and operational safety without the need for a manual safety.
Fully ambidextrous controls—including slide stop and magazine release—ensure seamless manipulation for both left- and right-handed users. Interchangeable backstraps help customize the grip profile to individual hand sizes and preferences. Internally, FN’s polished feed ramp and enhanced chamber geometry support smooth cycling with a wide variety of 9mm loads, making the 509 Midsize Tactical a dependable and rugged choice for carry, training, or tactical deployment.
FN 509 Midsize Tactical Specifications
- Manufacturer: FN
- Model: 509 Midsize Tactical
- Caliber: 9mm
- Action: Striker Fired
- Barrel Length: 4.5″
- Capacity: 10+1
- Magazine Count: 2
- Frame Finish: Flat Dark Earth
- Frame Material: Polymer
- Slide Finish: Flat Dark Earth
- Slide Material: Steel
- Sights: Holosun 407C
- Sight Type: Red Dot (Optic Only)
- Safety: Trigger Safety
- Optics Ready Cut: Yes
- Thread Pattern: 1/2×28
- Special Feature: Threaded Barrel
- Overall Length: 7.9″
- Grip: Flat Dark Earth Polymer
- Controls: Fully Ambidextrous
- Accessories: Interchangeable Backstraps
- Case: FN Soft Case
| Barrel Length | 4 |
|---|---|
| Caliber | 9mm |
| Capacity | 10 |
| Condition | New in Box |
| Finish Per Color | Flat Dark Earth |
| Frame Per Material | Polymer |
| Manufacturer | FN |
| Manufacturer Part Number | 66101939 |
| Model | 509 Midsize Tactical |
| Type | Semi Auto Handguns |
| UPC | 845737018436 |
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