The FN Five-SeveN MRD is a single-action semi-automatic pistol chambered in 5.7x28mm with a Flat Dark Earth finish. It has a 4.8-inch cold hammer-forged barrel, holds 20+1 rounds, and weighs 2.1 lbs unloaded. The slide is pre-cut for micro red dot sights. 
 

Key Specifications 

• Brand: FN America 
• Model Name: Five-SeveN MRD FDE 
• Caliber: 5.7x28mm 
• Action: Single Action Only 
• Capacity: 20+1 rounds 
• Barrel Length: 4.8 inches 
• Overall Length: 8.2 inches 
• Weight: 2.1 lbs (without magazine) 
• Grip Material: FDE Textured Polymer 
• Sights: 3-Dot Adjustable (co-witness capable) 
• Safety Features: No manual safety 
• Finish Color: Flat Dark Earth 
   

Detailed Features 

 
The cold hammer-forged, chrome-lined barrel produces consistent accuracy and extends service life. The MRD cut on the slide accepts most common micro red dot footprints without an adapter plate. Adjustable 3-dot rear sights co-witness with most MRDs, preserving iron sight backup without removing the optic. 
 
The trigger is a single-action internal hammer mechanism with a pull that breaks at approximately 6.2 lbs. The textured FDE polymer grip provides grip traction without aggressive stippling. There is no manual safety; the design relies on the single-action trigger with its take-up and reset. 
 
The 5.7x28mm cartridge produces minimal recoil relative to its terminal performance. With a 20+1 capacity in a 2.1-lb pistol, round count per carry is significantly higher than most handgun calibers of similar size.

The Five-SeveN MRD FDE attracts shooters who prioritize the 5.7x28mm cartridge's recoil characteristics and the 20+1 capacity. Positive feedback consistently covers low felt recoil -- it's noticeably lighter-shooting than 9mm for most users -- and the optics-ready slide that accepts common MRD footprints cleanly. Build quality and accuracy at range distances are praised.

The most common criticisms are price, ammunition cost, and availability. 5.7x28mm ammunition is more expensive and harder to find than 9mm, which limits how much range work most owners put through it. Some shooters find the grip dimensions uncomfortable for smaller or larger hands. The absence of a manual safety concerns a subset of buyers, though the single-action design has deliberate mechanical resistance to unintended discharge. A few discussions note questions about stopping power versus larger calibers, though that conversation tends to be subjective.