FN 509 Fullsize MRD 9mm Black Pistol
Capacity: 17+1 · Barrel Length: 4.5 inches
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Specifications
Action Semi-Automatic
Ambidextrous Safety No
Barrel Length 4.5 inches
Caliber / Gauge 9mm
Capacity 17+1
Finish Black
Grip Polymer with interchangeable backstraps
Grip Safety No
Magazines Included 2
Manual Safety No
Optic Ready Yes
Overall Length 7.9 inches
Sights Standard Sights
Threaded Barrel No
Trigger Safety Yes
Weight 27 ounces
Description
Product Overview
The FN 509 Fullsize MRD is a duty-style 9mm pistol designed for dependable performance in personal protection, home defense, and professional applications. Its striker-fired operating system provides a consistent trigger pull, while the 4.5-inch cold hammer-forged barrel features FN's recessed target crown to help protect the rifling and preserve accuracy. The polymer frame and interchangeable backstraps support a secure, customizable grip, and the slide's textured profile helps provide positive handling with reduced felt recoil. The FN Low Profile Optics Mounting System makes the pistol ready for a compatible miniature red dot sight while retaining its fixed three-dot sights for a practical co-witnessing setup.
Key Features
- Full-size 9mm striker-fired pistol with 17+1 capacity for duty and defensive use
- 4.5-inch cold hammer-forged barrel with a recessed target crown for durability and consistent accuracy
- FN Low Profile Optics Mounting System supports installation of a compatible miniature red dot sight
- Polymer frame with three interchangeable backstraps for a more customized grip
- Integrated trigger safety helps prevent unintended discharge
- Includes two 17-round magazines, four MRD mounting plates, three backstraps, a soft case, owner's manual, and gun lock
The FN 509 Fullsize MRD combines full-size handling, optics-ready capability, and adaptable ergonomics in a dependable 9mm pistol.
WARNING: This product can expose you to chemicals including arsenic, which is known to the State of California to cause cancer. For more information, go to WWW.P65WARNINGS.CA.GOV
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- SKU:
- 66100717
- UPC:
- 845737011703
- BUDS ID:
- 162149
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Bud's Gun Shop - Lexington, KY
1105 Industry Road, Lexington, KY 40505Bud's Gun Shop - Sevierville, TN
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820 Main St, Greenville, KY 42345Similar Products
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| Action | Semi-Automatic | Semi-Automatic | Semi-Automatic | Semi-Automatic | Semi-Automatic |
| Barrel Length (in.) | 4.5 | 4.5 | 4.5 | 3.7 | 4.0 |
| Caliber / Gauge | 9mm | 9mm | 9mm | 9mm | 9mm |
| Capacity | 17 | 17 | 10 | 12 | 15 |
| Finish | Black | Flat Dark Earth | Flat Dark Earth | FDE/Tan | Black |
| Optic Ready | Yes | Yes | Yes | Yes | Yes |
| Overall Length (in.) | 7.9 | 7.9 | 7.4 | 6.8 | 7.4 |
| Sights | Standard Sights | Standard Sights | Standard Sights | Standard Sights | Standard Sights |
| Trigger Safety | Yes | Yes | Yes | Yes | Yes |
| Weight (lbs) | 1.69 | 1.69 | 1.68 | 1.59 | 1.68 |
| Color | N/A | Flat Dark Earth | N/A | N/A | N/A |
| Actions | Current Item |



