The FN Five-SeveN MRD is a 5.7x28mm single-action semi-automatic pistol with a 4.8-inch cold hammer-forged chrome-lined barrel, 20+1 capacity, optics-ready cut, and adjustable iron sights that co-witness with mounted optics. It weighs 1.5 lbs (25.20 oz) with a textured black polymer grip. 
 

Key Specifications 

• Brand: FN America 
• Model Name: Five-SeveN MRD 
• Caliber: 5.7x28mm 
• Action: Single Action Only (SAO) 
• Capacity: 20+1 rounds 
• Barrel Length: 4.8 inches 
• Overall Length: 8.2 inches 
• Weight: 1.5 lbs (25.20 oz) 
• Finish: Matte Black 
• Grip Material: Textured Black Polymer 
   

Features 

The optic cut accepts most micro red dot sights without gunsmith work. Cold hammer-forged, chrome-lined barrel aids barrel life and accuracy. The adjustable iron sights are set up to co-witness with a mounted optic so the shooter has both options. The 5.7x28mm cartridge generates low recoil relative to its velocity, which helps with fast follow-up shots. At 20+1 rounds the capacity is among the highest for a full-size pistol.

The Five-SeveN MRD gets praise for its modern ergonomics, low recoil, and optics-ready design. Owners running red dots appreciate the factory cut and the co-witness capability with the adjustable irons. The 20-round capacity is consistently highlighted as a practical advantage for both competition and personal defense.

Ammunition cost and availability are the dominant criticisms. 5.7x28mm is harder to find and more expensive than 9mm, and that friction deters some potential buyers. Some owners find the pistol's larger footprint impractical for concealed carry. Aftermarket accessory availability is narrower compared to mainstream platforms, which comes up in discussions about long-term ownership.