
FN 66100742 509 Midsize MRD 9mm Luger 4" 10+1 Flat Dark Earth Flat Dark Earth Steel Slide Flat Dark Earth Interchangeable Backstrap Grip
$712.99
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Optimizing Your Performance: The FN 509M MRD Mid-Size 9mm Luger Pistol
Are you searching for a reliable, versatile, and highly adaptable 9mm pistol that excels in both concealed carry and performance shooting? Do you need a handgun that seamlessly integrates modern optics for rapid target acquisition without sacrificing concealability or ergonomic comfort? Look no further. The FN 509M MRD (Miniature Red Dot) Mid-Size 9mm Luger, available at DEGuns, stands as a premier choice for those demanding precision, durability, and a custom-tailored shooting experience from their firearm.
This comprehensive guide will delve into what makes the FN 509M MRD a standout option, exploring its innovative features, real-world applications, and how it addresses the needs of discerning shooters. Whether you're a first-time gun owner seeking a dependable self-defense tool, a seasoned concealed carry permit holder, or a competitive shooter aiming for an edge, understanding the capabilities of this exceptional pistol is key.
What Makes the FN 509M MRD an Elite Choice for Modern Shooters?
The FN 509M MRD isn't just another pistol; it's engineered for the modern shooter who values adaptability and performance. Its design philosophy centers around a low-profile optics mounting system, superior ergonomics, and robust construction, all packed into a balanced mid-size frame.
For anyone asking, "What is the best 9mm pistol for concealed carry with an optic?" or "Which handgun offers the most versatile optics mounting solution?" the FN 509M MRD provides a compelling answer.
Unparalleled Optics Integration: The FN Low Profile Optics Mounting System
One of the most defining features of the FN 509M MRD is its groundbreaking FN Low Profile Optics Mounting System. This system is a game-changer for pistol shooters, providing the capability to directly mount more than 10 different miniature red dot optics. Unlike other systems that might require adapter plates, which can raise the optic excessively, FN’s solution ensures your chosen red dot sits lower on the slide. This results in several significant advantages:
- Enhanced Sight Picture: A lower mounted optic means your sight picture is more natural and intuitive. Your red dot aligns more closely with your bore axis, leading to quicker target acquisition and more precise shot placement.
- Improved Concealability: With the optic sitting lower, the overall profile of the pistol remains streamlined, making it easier to conceal under clothing, even with a red dot attached. This is crucial for everyday concealed carry (EDC) or CCW permit holders.
- Co-Witness Capability: The design often allows for a "co-witness" with the existing combat-style iron sights. This means your iron sights can still be seen through the optic's window, providing a reliable backup aiming system in case of optic failure or battery depletion. This dual aiming capability offers an invaluable layer of reliability and confidence.
- Broad Compatibility: The system's ability to accommodate a wide array of popular red dot sights (RMR, Holosun, Leupold, Vortex, etc.) means you're not locked into a specific brand, offering unparalleled customization.
This feature is a direct answer to the question, "How can I improve my pistol's accuracy and speed?" By facilitating the use of modern red dot sights, the FN 509M MRD empowers shooters to achieve faster splits between shots and maintain superior accuracy under pressure.
The Perfect Balance: Mid-Size Frame and 4-inch Barrel
The FN 509M MRD strikes an optimal balance between concealability and shootability. With its 4-inch slide and barrel, it’s designed to be an easily-concealed package while still offering the ballistic performance and comfortable shooting experience of a larger pistol.
- Concealed Carry Efficacy: For those seeking a CCW firearm, the mid-size frame allows for comfortable appendix, IWB (inside the waistband), or OWB (outside the waistband) carry without significant printing, offering an ideal blend of capacity and discretion.
- Enhanced Control: The slightly longer barrel and slide compared to subcompact models contribute to a longer sight radius (for iron sights) and better recoil management, translating to more consistent follow-up shots.
- Versatility: This size makes it versatile enough for daily carry, home defense, and even competitive shooting, bridging the gap between compact and full-size handguns.
If you’re wondering, "What is a good multi-purpose 9mm handgun?" the FN 509M MRD’s mid-size dimensions make it a strong contender for various roles.
Ergonomics and User Control: Engineered for the Shooter
FN has meticulously engineered the 509M MRD for superior user interaction, enhancing both comfort and control.
- Improved Controls: Every touchpoint on the pistol has been refined. The slide stop, magazine release, and takedown lever are intuitively placed and offer positive engagement.
- Enhanced Texturing and Interchangeable Backstraps: The grip features aggressive yet comfortable texturing that ensures a secure hold, even in adverse conditions or with gloved hands. It comes with two interchangeable backstraps, allowing shooters to customize the grip to their hand size and preference. This leads to a more natural point of aim and better recoil absorption.
- Flat-Faced Trigger: The inclusion of a flat-faced trigger is a significant upgrade. This design promotes a more consistent finger placement, which can lead to a more repeatable and precise trigger pull. Shooters often find that flat triggers provide a cleaner break and a perceived lighter pull, contributing to improved accuracy.
- Fully Ambidextrous Controls: Recognizing the diverse needs of shooters, the FN 509M MRD boasts fully ambidextrous controls, including the slide stop and magazine release. This ensures comfortable and efficient operation for both right-handed and left-handed individuals, eliminating any potential disadvantage.
- MIL-STD-1913 Accessory Mounting Rail: A standard Picatinny rail on the dust cover allows for easy attachment of tactical lights, lasers, or other accessories, further enhancing the pistol's utility for low-light situations or tactical applications.
These ergonomic improvements are vital for anyone asking, "How can I improve my shooting grip and control?" or "Which pistol offers ambidextrous features for left-handed shooters?"
Precision and Durability: The Heart of the FN 509M MRD
At the core of the FN 509M MRD's performance is its commitment to high-quality materials and manufacturing.
- Cold Hammer-Forged Stainless Steel Barrel with Recessed Target Crown: The 4-inch barrel is cold hammer-forged, a process that creates an incredibly durable and exceptionally accurate barrel. The recessed target crown protects the barrel's rifling from damage, preserving its precision over thousands of rounds. This meticulous construction contributes significantly to the pistol's inherent accuracy and longevity.
- Combat-Style Sights: Equipped with robust combat-style sights, the pistol offers a clear, high-visibility aiming solution. These sights are designed to be rugged and effective in real-world scenarios, and their co-witnessing capability with optics adds to their utility.
- Improved Front and Rear Cocking Serrations: The slide features aggressive front and rear cocking serrations, ensuring a positive grip for press checks or racking the slide, even when hands are wet or gloved.
- Flat Dark Earth (FDE) PVD Optic Ready/Serrated Steel Slide: The steel slide is finished with a Flat Dark Earth PVD (Physical Vapor Deposition) coating. PVD is a highly durable and corrosion-resistant finish that protects the slide from wear and tear, ensuring the pistol maintains its aesthetic and functional integrity over time. The "Optic Ready" designation specifically refers to the integrated optics mounting system.
- Flat Dark Earth Polymer Frame: The lightweight yet robust polymer frame, also in Flat Dark Earth, provides a comfortable grip and reduces overall weight, making the pistol easier to carry for extended periods. The polymer construction is inherently resistant to various environmental factors, contributing to the pistol's reliability.
These features answer common inquiries such as "What materials make a pistol durable?" and "How important is barrel quality for handgun accuracy?"
Who is the FN 509M MRD For? Real-World Applications
The FN 509M MRD is a versatile firearm, perfectly suited for a wide array of users and applications:
- Concealed Carry Permit Holders: Its mid-size frame, ample capacity, and optics-ready design make it an excellent choice for daily carry, offering a balance of concealability and self-defense effectiveness.
- Home Defense: The ability to mount a weapon light and the reliable performance of the 9mm Luger round make it a strong candidate for home defense scenarios.
- Competitive Shooters: For disciplines like USPSA Carry Optics or IDPA, the FN 509M MRD, with its factory optics readiness and improved trigger, provides a highly competitive platform.
- Law Enforcement & Security Professionals: The pistol's robust construction, reliability, and accessory mounting capabilities make it a dependable sidearm for duty use.
- Recreational Shooters & Trainers: For those who enjoy regular range visits and want to enhance their skills with a modern, feature-rich pistol, the 509M MRD offers an engaging and rewarding shooting experience. It's a fantastic training platform for learning to shoot with a red dot.
Why Choose the FN 509M MRD from DEGuns?
When considering your next firearm, the FN 509M MRD stands out as a top-tier option for its innovative design, performance-driven features, and unparalleled adaptability. Its integration of a low-profile optics system, superior ergonomics, and robust construction delivers a handgun that not only meets but often exceeds expectations for accuracy, reliability, and user comfort.
Each FN 509M MRD comes complete with two magazines, a durable case for transport and storage, a locking device for safety, and a comprehensive owner's manual to ensure you have everything needed to get started responsibly.
For shooters seeking a definitive answer to "What is the best modern 9mm pistol for self-defense and tactical use?" or "Where can I find a high-quality, optics-ready handgun?" the FN 509M MRD, available at DEGuns, represents an exceptional investment in personal safety and shooting excellence. Experience the difference that FN's commitment to quality and innovation makes.
FN 509M MRD Specifications
| Feature | Detail |
|---|---|
| Brand | FN |
| Model | 509M MRD |
| Caliber | 9mm Luger |
| Capacity | 10+1 |
| Action | Double Action Only (DAO) |
| Barrel Length | 4.00 inches |
| Overall Length | 7.40 inches |
| Height | 5.20 inches |
| Width | 1.35 inches |
| Weight | 26.50 oz |
| Frame Material | Polymer |
| Frame Finish | Flat Dark Earth |
| Slide Material | Steel |
| Slide Finish | Flat Dark Earth PVD |
| Barrel Material | Steel |
| Barrel Finish | Black |
| Barrel Type | Cold Hammer-Forged, Recessed Crown |
| Twist Rate | 1:10" RH |
| Frame Size | Mid-Size |
| Grips | FDE Textured w/ Interchangeable Backstrap |
| Sights | Co-Witness Iron (Combat-Style) |
| Trigger | Flat Face |
| Controls | Ambidextrous |
| Accessory Rail | MIL-STD-1913 Picatinny Rail |
| SKU | 66100742 |
| UPC | 845737011574 |
Specifications
Explore the specific details and characteristics
- CATEGORY
- PISTOLS
- BRAND
- FN
- MODEL
- 509M
- ACTION
- DAO
- BARREL LENGTH
- 4"
- CAPACITY
- 10+1
- SAFETY
- NO
- GRIPS
- FDE INTERCHANGEABLE BACKSTRAP
- SIGHT CONFIGURATION
- CO-WITNESS IRON
- FRAME FINISH
- FLAT DARK EARTH
- SLIDE DESCRIPTION
- OPTIC READY/SERRATED
- SKU
- 66100742
- UPC
- 845737011574
- MPN
- 66100742







