FN Five-seveN MRD: 5.7mm and Optic-Ready

If there’s one cartridge that’s been getting increasingly popular, it’s 5.7x28mm. Of course, not all guns are made equal, which is why you should take the time to choose the right gun for you before adding another pistol to your collection. That said, if the 5.7x28mm chambering is what you’re after, it’s worth a closer look at the FN Five-seveN MRD. Not only do you get a handgun backed by FN’s stellar reputation but you get one that’s optics ready, right out of the box.

Optics ready FN Five-seveN
Optics ready FN Five-seveN? Yes, please. (Photo credit: FN)

According to FN, their Five-seveN MRD is “what other pistols want to be when they grow up.” The gun maker went on to explain the details of the gun’s optics-ready platform:

…the Five-seveN MRD’s optic mount consists of a series of plates that mate the optic to the slide. Just like FN’s 509 optics-ready pistols, users are able to mount a miniature red dot sight within minutes using the corresponding plates and screws provided with the pistol. The system is compatible with most common miniature red dot sights including the Leupold DeltaPoint Pro, Trijicon RMR, Vortex Optics, Burris FastFire series, Docter Optics and more. The three-dot photo luminescent sights glow in low light conditions, are adjustable for elevation and windage and co-witness with certain optics.. 

red dot sight on Five-seveN MRD
Red dots are here to stay. Do you have one on your carry gun? Do you want one? (Photo credit: FN)

Chris Cole, Vice President of Sales and Marketing for FN America, LLC. , had the following to say about the optics-ready Five-seveN:

The FN Five-seveN pistol has been immensely popular since its introduction. Its original design capturing the performance of the FN-designed 5.7x28mm cartridge made it an instant success, and it’s positioned to do it yet again with the dramatic redesign of the FN Five-seveN MRD. With the addition of an integral optics mounting system on the slide, an already accurate pistol now redefines what handgun accuracy means. We’re truly excited to bring this new pistol to market with features our customers want in their favorite FN caliber.

FN Five-seveN MRD with Holosun red dot sight and Surefire X300 Ultra weaponlight
A red dot sight and weapon-mounted light make the FN Five-seveN even more awesome. (Photo credit: FN)

Features of the FN Five-seveN MRD include:

  • Precision iron sights
  • Two 20-round magazines
  • Improved grip ergonomics
  • Available in black or FDE (Flat Dark Earth)
  • Crisp trigger with 6-pound, 2-ounce trigger pull weight
  • Target crowned, match grade 4.8 inch barrel
  • Aggressive slide serrations
  • Slide cut to mount most optics
  • Minimal recoil from the FN 5.7x28mm cartridge
  • Add most MRDs in minutes, without a gunsmith
  • Machined steel slide with polymer cover
  • Enhanced slide cover improves cocking control
  • Photo-luminescent front sight with adjustable rear
FN Five-seveN MRD
The FN Five-seveN MRD is available in black and has an optics-ready slide, so you can mount your red dot sight to the pistol within minutes. (Photo credit: FN)


  • Caliber: 5.7x28mm
  • Operating system: Delayed blowback, Single-action only
  • Magazine capacity: 10 or 20 rounds
  • Overall weight: 25.2 ounces, empty, without magazine
  • Barrel length: 4.8 inches
  • Overall length: 8.2 inches
  • Twist rate: 1 in 9 RH
  • Height: 5.6 inches
  • Width: 1.35 inches
  • Trigger pull weight: 4.4 – 7.87 lb.
  • Sight radius: 7.0 inches

MSRP on the FN Five-seveN MRD is $1449.00.

Kat Ainsworth Stevens is a long-time outdoor writer, official OGC (Original Gun Cognoscenti), and author of Handgun Hunting: a Comprehensive Guide to Choosing and Using the Right Firearms for Big and Small Game. Der Teufel Katze has written for a number of industry publications (print and online) and edited some of the others, so chances are you've seen or read her work before, somewhere. A woman of eclectic background and habits, Kat has been carrying concealed for over two decades, used to be a farrier, and worked for a long time in emergency veterinary medicine. She prefers big bores, enjoys K9 Search & Rescue, and has a Master's Degree in Pitiless Snarkastic Delivery.

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