FN 66101277 Five-seveN MRD 5.7x28mm 4.80″ Barrel 10+1, Flat Dark

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FN 66101277 Five-seveN MRD 5.7x28mm 4.80″ Barrel 10+1, Flat Dark Earth Polymer Frame With Mounting Rail & Serrated Trigger Guard, Optic Cut FDE Steel Slide, No Manual Safety, Optics Ready


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With more than two decades of trusted service, the original FN Five-seveN breaks new ground in 2022, redefining handgun accuracy standards with optics-ready capabilities, enhanced ergonomics, and improved controls. The FN Five-seveN MRD’s proprietary optics-mounting system consists of a series of plates that match your optic to the slide for a quick and seamless setup, simply remove the cover plate, select the compatible optic plate and screw set that match your MRD and mount using the provided hardware. The system is compatible with most common optic footprints, offering an unmatched variety of options. Its stippling and textures on the ergonomic frame as well as enhanced serrations on the slide, trigger guard and safety selector enable superior grip and control in an already soft-recoiling pistol. The internal hammer and smooth trigger pull, coupled with the long-lasting 4.8-inch cold hammer-forged and chrome-lined barrel, provide the ultimate package to achieve precision at distance.




FN America / FN Herstal

Manufacturer Part Number


Overall Length



Single Action

Finish Type

Applied Finish


10 + 1


5.7 x 28mm

Barrel Length




Frame Material

Polymer Frame

Finish Style

Flat Dark Earth

Sights Type

Adjustable Sights

Magazine Capacity

10 + 1

Number of Magazines

2 10 Round

Rate of Twist


Drilled and Tapped


Additional Feature 1

MRD Optics Ready Slide

Additional Feature 2

Reversible Magazine Release

Additional Feature 3

1913 Accessory Rail

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