FN 66100864 FNX Tactical 45 ACPSemi Automatic Handgun with Viper Red Dot

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The FNX-45 Tactical Pistol in Flat Dark Earth: A Combat Handgun Redefined for the Modern Era

For discerning firearms enthusiasts, tactical professionals, and those who demand uncompromising performance in a personal defense weapon, the FNX-45 Tactical pistol stands as a benchmark of excellence. Engineered for the rigors of real-world combat scenarios, this pistol isn't just an evolution; it's a revolution in handgun design, offering an unparalleled blend of .45 ACP stopping power, advanced modularity, and battle-proven reliability. Specifically, the Flat Dark Earth (FDE) variant with the integrated Vortex Viper Red Dot sight (UPC: 845737000981) represents the pinnacle of this design, ready to excel in any mission.

Are you searching for a dependable .45 ACP handgun that integrates seamlessly with modern tactical accessories? Do you need a pistol with a threaded barrel for suppressor use, or one that's optics-ready right out of the box? The FNX-45 Tactical answers these questions and more, delivering a solution purpose-built to withstand the harshest conditions and emerge victorious. It’s ideal for military personnel, law enforcement officers, competitive shooters seeking an edge, and civilians who prioritize robust, feature-rich firearms for home defense or recreational shooting.

A Legacy Forged in Battle: Improving on Excellence

The FNX-45 Tactical pistol builds upon the formidable foundation of the FNP™-45 Tactical, a design that proved its mettle during the U.S. Joint Combat Pistol Program. This lineage ensures that every aspect of the FNX-45 Tactical, from its robust construction to its intuitive controls, is optimized for peak performance when it matters most. It embodies the relentless pursuit of perfection that has defined FN firearms for generations, guaranteeing a combat handgun designed not merely to survive the battlefield, but to dominate it.

What makes the FNX-45 Tactical stand out in a crowded field of .45 ACP handguns? It’s a combination of unique features meticulously integrated to provide unmatched operator control and versatility.

Unparalleled Ergonomics and Recoil Management

One of the immediate benefits experienced by users of the FNX-45 Tactical is its exceptional ergonomics. The checkered polymer frame is meticulously designed with a low-bore axis, a critical feature that significantly reduces felt recoil. This translates directly to enhanced operator control, quicker follow-up shots, and improved accuracy, even during rapid firing. The grip angle is engineered to promote an incredibly natural point of aim, allowing shooters to instinctively align the sights with their target.

To ensure a perfect fit for a wide range of hand sizes, the FNX-45 Tactical comes standard with four interchangeable backstraps. This allows for quick and easy customization of the grip feel, ensuring optimal comfort and control for every shooter. This adaptability is a key advantage, especially in dynamic environments where precise handling is paramount.

Threaded Barrel for Superior Versatility

The heart of its modularity lies in its 5.3-inch cold hammer-forged stainless steel barrel. This precision-engineered barrel features a threaded muzzle (.578x28 tpi with a thread protector), making it instantly compatible with a wide array of sound suppressors, compensators, and other muzzle accessories. For those looking to minimize muzzle flash, reduce noise, or mitigate recoil further, this threaded barrel is an indispensable feature. The cold hammer-forging process ensures superior accuracy and longevity, while the polished chamber and feed ramp contribute to flawless feeding and extraction of ammunition. This is a pistol designed for those who understand the tactical advantages of a suppressor, whether for discretion, hearing protection, or enhanced shooting comfort during extended range sessions.

Optic-Ready Slide with High-Profile Combat Night Sights

The stainless steel slide of the FNX-45 Tactical is a testament to its forward-thinking design. It’s cut and threaded specifically to accept a variety of optional electronic red-dot sights. The included sight mounting kit with plates and screws ensures compatibility with multiple popular red-dot optics, making it incredibly easy to enhance your aiming precision and speed. The included Vortex Viper Red Dot, a compact yet robust optic, seamlessly integrates with the pistol, offering rapid target acquisition and improved accuracy, particularly in low-light conditions.

Complementing the optic-ready capability are the raised 3-dot Trijicon green tritium night sights. These high-profile combat sights are designed to co-witness with mounted red-dot optics, providing a reliable backup aiming solution. Their height also allows for unimpeded sight picture when a suppressor is attached, preventing the suppressor from obstructing your view. The thoughtful design ensures that the width of the raised night sights perfectly frames the shoulder width of a target at 25 meters, providing an intuitive aiming reference even without an optic.

Fully Ambidextrous Controls for Universal Usability

In the heat of the moment, every second counts, and intuitive operation is critical. The FNX-45 Tactical addresses this with fully ambidextrous operating controls. Whether you are left-handed or right-handed, the decocking/safety lever, slide stop lever, and magazine release are all accessible and operable from either side of the pistol. This universal design makes the FNX-45 Tactical an excellent choice for any shooter, enhancing safety and operational efficiency regardless of dominant hand or tactical situation. This also allows for seamless transitions and manipulations, crucial for professional use.

Robust Magazine Design for Peak Performance

The FNX-45 Tactical comes standard with two 15-round magazines, engineered for durability and reliability. Each magazine features a polished nickel-coated steel body, a low-friction follower, and a durable polymer base pad. This construction ensures smooth feeding, resistance to corrosion, and the ability to withstand drops and impacts. The extended base pad aids in a secure grip and quick reloads, making it an ideal companion for tactical drills or competition. For state-compliant models, 10-round magazines are also available, ensuring accessibility for a wider range of customers.

Integrated Accessory Mounting Rail

A MIL-STD-1913 accessory mounting rail is seamlessly integrated into the polymer frame below the barrel. This rail allows for the quick and secure attachment of various tactical lights, laser aiming modules, or other accessories, further expanding the pistol’s utility and adaptability to different operational needs. The serrated trigger guard also provides an ergonomic point of contact for enhanced control.

FN America: The Craft of Combat Excellence

The FNX-45 Tactical embodies the unwavering commitment to innovation, development, and production of dependably exceptional firearms that defines FN America. Headquartered in Columbia, SC, FN America stands out from other firearm manufacturers by maintaining uncompromising standards, unmatched quality, and a relentless pursuit of perfection.

Every FN handgun, with the exception of the FN Five-seveN®, is meticulously manufactured at FN's state-of-the-art production facility in South Carolina. Here, a dedicated and talented team painstakingly transforms raw steel and polymer into expertly crafted firearms that are built to withstand the test of time and the demands of the battlefield. This commitment to craftsmanship and performance is also why every single firearm that leaves the FN factory is hand-tested with more fired rounds than any other firearms company. This rigorous testing protocol provides an unparalleled level of confidence in the reliability and longevity of every FN pistol. When you choose an FNX-45 Tactical, you're not just buying a handgun; you're investing in a legacy of "Innovative minds. Battle-tested blueprint. Groundbreaking engineering. Carry The Future® From FN."

FN America understands that every mission is unique, whether it's a lone U.S. soldier behind enemy lines, a young parent protecting their home, or an officer on patrol. They believe that what you carry inside is every bit as important as what you carry with you. Their products, training, and support services are designed to not only enhance performance but also ensure a higher level of personal safety. This deep understanding of user needs and commitment to excellence is precisely why FN firearms, including the FNX-45 Tactical, are trusted by elite military units and law enforcement agencies worldwide.

Who is the FNX-45 Tactical For?

  • Tactical Professionals: Its rugged design, suppressor readiness, optic compatibility, and ambidextrous controls make it an ideal choice for military and law enforcement operators.
  • Competitive Shooters: The low bore axis, adjustable ergonomics, and optic compatibility contribute to faster, more accurate shooting on the range.
  • Home Defense Enthusiasts: The potent .45 ACP caliber, high capacity, and accessory rail provide a formidable platform for personal and home protection.
  • Firearms Aficionados: Those who appreciate high-quality manufacturing, advanced features, and a pistol with a proven lineage will find the FNX-45 Tactical a compelling addition to their collection.

Common Questions Answered

  • How does the FNX-45 Tactical handle recoil? The low-bore axis and ergonomic design significantly reduce felt recoil, making the .45 ACP caliber surprisingly manageable for quick and accurate follow-up shots.
  • Can I easily attach a red dot sight? Yes, the slide is pre-cut and includes a sight mounting kit with plates and screws for easy installation of various popular red-dot optics, including the integrated Vortex Viper Red Dot on this specific model (UPC: 845737000981).
  • Is it suitable for suppressor use? Absolutely. The 5.3-inch cold hammer-forged stainless steel barrel is threaded (.578x28 tpi) and comes with a thread protector, making it ready for immediate suppressor attachment. The raised night sights also provide a clear sight picture over most suppressors.
  • What comes in the box with the FNX-45 Tactical? Each FNX-45 Tactical (UPC: 845737000981) ships with two 15-round magazines (or two 10-round magazines for state-compliant models), a fitted, soft Cordura® nylon case, an owner’s manual, four interchangeable backstraps, a locking device, and a sight mounting kit with plates and screws, ensuring you have everything needed to get started.
  • Where is the FNX-45 Tactical manufactured? Proudly made in the USA at FN America's state-of-the-art production facility in Columbia, SC.

The FNX-45 Tactical pistol in Flat Dark Earth (UPC: 845737000981) with its integrated Vortex Viper Red Dot sight is more than just a handgun; it’s a comprehensive combat system designed for today’s most demanding environments. Its blend of historical FN reliability, cutting-edge engineering, and user-centric features ensures that it stands ready for any challenge you face. This robust and versatile firearm is available from trusted retailers like DEGuns, ensuring you receive a genuine, quality product ready for duty or defense.

FNX-45 Tactical Pistol Specifications (UPC: 845737000981)

Feature Detail
Brand FN
Model FNX-45 Tactical
Caliber .45 ACP
Operation Double-Action/Single-Action (DA/SA)
Magazine Capacity 15+1 Rounds (Two 15-rd magazines included; 10-rd for state-compliant models)
Barrel Length 5.30"
Barrel Thread Pattern .578x28 RH with Thread Protector
Overall Length 8.60"
Weight 33.30 oz (empty)
Frame Finish Flat Dark Earth (FDE) Polymer Frame with MIL-STD-1913 Picatinny Rail
Slide Finish Flat Dark Earth (FDE) Stainless Steel Optic Ready/Serrated
Sights Raised 3-dot Trijicon Green Tritium Night Sights (Suppressor Height)
Included Optic Vortex Viper Red Dot
Grips Black Textured Polymer with Four Interchangeable Backstraps
Controls Fully Ambidextrous Decocking/Safety Lever, Slide Stop, Magazine Release
Manufacturing Made in the USA
SKU 66968
UPC 845737000981

What's in the Box?

Item Quantity
FNX-45 Tactical Pistol with Vortex Viper Red Dot 1
15-round Magazines (or 10-round for compliant states) 2
Fitted, Soft Cordura® Nylon Case 1
Owner’s Manual 1
Interchangeable Backstraps 4
Locking Device 1
Sight Mounting Kit with Plates and Screws 1 set

Specifications

Explore the specific details and characteristics

Manufacturer
FN
Barrel Length
5.3"
Caliber
.45 ACP
SKU
66100864
UPC
845737012359
MPN
66100864

FAQ

FN 66100864 FNX Tactical 45 ACPSemi Automatic Handgun with Viper Red Dot