The FN Five-seveN has earned a reputation as an elite sidearm within the realms of military and law enforcement. Originally constructed around the distinctive 5.7x28mm cartridge, the pistol was initially viewed as a specialized companion to the FN P90 personal defense weapon. Jump forward more than 20 years, and the newest iteration—the FN Five-seveN MRD—indicates just how far this platform has come, now featuring cutting-edge upgrades specifically designed for contemporary combat and tactical applications.
Modern Upgrades: Optics and Ergonomics
A standout feature of the MRD model is its optics-ready slide. It supports a wide range of micro red dot sights right out of the box, thanks to a cleverly engineered mounting system. No gunsmith needed—just pick your optic, attach the included plate and hardware, and you’re good to go.
Ergonomics has also moved in leaps and bounds. The MRD features better frame textures, slide serrations, and enhancements to the trigger guard and safety lever. These features provide enhanced control and handling, even in stressful situations or during wet conditions. With ambidextrous controls and reversible magazine release, it’s designed to suit all shooters, irrespective of dominant hand.
Built for Performance
Under the hood, the pistol boasts a 4.8-inch cold hammer-forged barrel with a target crown, which allows for accuracy and long-term integrity. The internal hammer-fired, single-action-only trigger system delivers a smooth pull with a crisp break at approximately 6 pounds and allows for rapid, accurate shooting.
The 5.7x28mm cartridge—small, quick, and flat-shooting—is nicely paired with the delayed blowback action to provide extremely low recoil. That translates into tighter groups and quicker follow-ups, particularly desirable in tactical environments. And a 20-round magazine doubles capacity over many standard-issue service pistols, minimizing constant reloading.
Reliability and Real-World Use
Reliability is at the heart of the Five-seveN platform, and the MRD variant performs under stress. During stress testing in excess of 500 rounds in suboptimal conditions, it performed perfectly. Its polymer frame maintains minimal weight, with the steel slide housed in a polymer casing bringing strength and ease of maintenance.
Accessory Compatibility and Customization
Customization is a strong selling point. Red dot sights are the most common upgrade, but the MRD is also compatible with threaded barrel trades for those who wish to incorporate suppressors or compensators. Aftermarket devices such as the EFK Fire Dragon barrel or GSL and Huxwrx suppressors provide users with options based on their mission or personal preference.
Needing more firepower? There are extended mags and even 55-round drum mags available, particularly for high-intensity applications such as competition shooting or home protection.
Holsters and Carry Options
When it comes to wearing, the MRD’s unique profile makes choosing the proper holster important. From low-vis IWB to tactical OWB and shoulder rigs, there are numerous options designed for specific use scenarios. Holsters accommodating lights or optics make fully outfitted configurations simple to draw.
A Future-Ready Sidearm
The FN Five-seveN MRD doesn’t attempt to be another run-of-the-mill sidearm. Rather, it stands as a cutting-edge tool for today’s soldier, law enforcer, and security officer. Its combination of high capacity, low recoil, greater optics compatibility, and the strength of its construction, the MRD is not only keeping pace with the times—it’s defining what a next-generation combat pistol needs to be.
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