FN 509 MRD w/ Optic Features
The heart of this model lies in its black PVD-coated optic-cut slide, ready to accept a wide array of red dot optics. The included Holosun HS 407C offers crisp, reliable sighting with long battery life and shake-awake technology. Suppressor-height co-witness iron sights ensure backup targeting capability and align perfectly with the optic for enhanced aiming speed and confidence.
The black polymer frame features interchangeable backstraps and a built-in Picatinny accessory rail, offering ergonomic comfort and tactical customization. The hammer-forged stainless steel barrel with a recessed target crown enhances accuracy and durability. Weighing just 27 oz, the FN 509 MRD delivers a balanced feel in the hand, and the consistent double-action-only trigger pull (4.5–6 lbs) ensures precision under pressure. Designed with no manual safety, this model is streamlined for fast, intuitive deployment.
FN 509 MRD w/ Optic Specifications
- Manufacturer: FN
- Model: 509
- Series: MRD w/ Optic
- Caliber: 9mm Luger
- Action: DAO (Double Action Only)
- Type: Semi-Auto Pistol
- Frame Size: Full Size
- Frame Finish: Black
- Frame Material: Polymer
- Frame Description: Polymer Frame w/ Picatinny Rail
- Slide Finish: Black PVD
- Slide Material: Steel
- Slide Description: Optic Cut / Serrated
- Optic: Holosun HS 407C Red Dot
- Sights: Co-Witness Iron Sights
- Sight Type: Suppressor Height
- Barrel Length: 4.50″
- Barrel Material: Hammer-Forged Stainless Steel
- Barrel Finish: Black
- Barrel Description: Recessed Target Crown
- Twist Rate: 1:10″ RH
- Muzzle: Recessed Target Crown
- Capacity: 10 + 1
- Max Capacity: 10
- Grips: Black Polymer
- Trigger Pull Weight: 4.5 – 6 lbs
- Safety Features: No Manual Safety
- Overall Length: 7.90″
- Height: 5.56″
- Width: 1.35″
- Weight: 27 oz
- Hand: Ambidextrous
| Barrel Length | 4.5 |
|---|---|
| Caliber | 9mm |
| Capacity | 10 |
| Condition | New in Box |
| Finish Per Color | Black |
| Frame Per Material | Polymer |
| Manufacturer | FN |
| Manufacturer Part Number | 66101928 |
| Model | 509 MRD |
| Type | Semi Auto Handguns |
| UPC | 845737018351 |
Frequently Asked Questions About This Product
Why buy FN 509 MRD 9mm 4.5" 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 MRD 9mm 4.5" 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 MRD 9mm 4.5" 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 MRD 9mm 4.5" Barrel 10-Rounds w/ Holosun 407C
All firearms, including the FN 509 MRD 9mm 4.5" 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 MRD 9mm 4.5" 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.
