The Mossberg 590R is a pump-action shotgun chambered in 12 Gauge with an 18.5-inch barrel finished in Flat Dark Earth Cerakote. It has a 6-round capacity, a heat shield over the barrel, and MBUS sights on a steel receiver. The stock is an AR Mil-Spec adjustable synthetic in black, fitted with a Magpul grip. 
 

Key Specifications 

• Brand: Mossberg 
• Model: 590R 
• Caliber: 12 Gauge 
• Action: Pump Action 
• Capacity: 6+1 rounds 
• Barrel Length: 18.5 inches 
• Color/Finish: Flat Dark Earth Cerakote 
   

Detailed Features 

• Flat Dark Earth Cerakote finish on barrel and steel receiver 
• Heat shield on the 18.5-inch barrel 
• MBUS backup sights included 
• AR Mil-Spec adjustable synthetic stock 
• Magpul pistol grip in black

Owners of the Mossberg 590R in FDE generally appreciate the Cerakote finish for its corrosion resistance and the heat shield as a practical touch for sustained shooting. The adjustable Mil-Spec stock and Magpul grip get consistent praise for making the platform feel familiar to AR users.

The MBUS sights draw mixed reactions. Some owners see them as a useful out-of-the-box addition; others prefer to swap them for a simple bead or a different rail-mounted optic. The 18.5-inch barrel length is seen as a reasonable balance between indoor maneuverability and pattern performance.

Value opinions on the 590R platform are generally positive compared to similarly configured pump shotguns, though a common note is that the trigger pull can be heavier than expected straight from the box. The 6-round tube keeps the gun light, though some owners wish for a higher-capacity option without modifications.