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 |
Frequently Asked Questions About This Product
Why buy FN 509 Midsize Tactical Flat Dark Earth 9mm 4" Barrel 10-Rounds w/ Holosun 407C from Miami Shooters Supply?
We’re a trusted firearms dealer offering fast shipping, competitive pricing, and 100% compliance with U.S. federal firearm laws. All orders ship from our licensed facility with full tracking and expert customer service.
Where can I buy FN 509 Midsize Tactical Flat Dark Earth 9mm 4" Barrel 10-Rounds w/ Holosun 407C?
You can purchase this item directly on our website and have it shipped to your local FFL dealer. You can also visit us in-store in Miami, Florida.
Is FN 509 Midsize Tactical Flat Dark Earth 9mm 4" Barrel 10-Rounds w/ Holosun 407C available now?
Availability is shown live on this page. If the “Add to Cart” button is visible, this item is currently in stock and ready to ship.
What category does this product belong to?
This product is listed under: HANDGUNS, Semi Auto Handguns.
What tags or features does this product have?
Key features and tags for this product include: HANDGUNS, Semi Auto Handguns.
Is this product legal in my state?
It is your responsibility to ensure this item is legal in your state or locality. We ship only to valid FFL dealers in compliance with U.S. laws. Always check your local regulations.
FFL Transfer & Firearms Laws for FN 509 Midsize Tactical Flat Dark Earth 9mm 4" Barrel 10-Rounds w/ Holosun 407C
All firearms, including the FN 509 Midsize Tactical Flat Dark Earth 9mm 4" Barrel 10-Rounds w/ Holosun 407C, must be shipped to a licensed Federal Firearms License (FFL) dealer. You will be required to complete a background check and any necessary paperwork before taking possession.
How It Works
- Place your order online.
- Provide your preferred FFL dealer information.
- We ship the firearm directly to your FFL.
- You complete the background check and pickup at the FFL.
Legal Compliance
We comply with all federal and state firearm laws. It is your responsibility to ensure the FN 509 Midsize Tactical Flat Dark Earth 9mm 4" Barrel 10-Rounds w/ Holosun 407C is legal in your state. Some states may have restrictions on certain firearm models or features.
Helpful Resources
Need assistance? Contact our Miami store for help with FFL transfers and firearm compliance.
