The Mossberg 940 Pro Waterfowl is a gas-operated semi-automatic shotgun chambered in 12 gauge with a 3" chamber, 28" barrel, and 4+1 capacity. It weighs 7.75 lbs and measures 48.75" overall. The TrueTimber Viper Snow camo finish is designed for concealment in snowy and late-season environments. The receiver has a Battleship Gray Cerakote coating. 
 

Key Specifications 

• Model: 940 Pro Waterfowl 
• Caliber/Gauge: 12 Gauge 
• Action: Semi-Auto 
• Chamber: 3" 
• Barrel Length: 28" 
• Overall Length: 48.75" 
• Weight: 7.75 lbs 
• Capacity: 4+1 rounds 
• Sights: HiViz CompSight Fiber Optic 
• Finish Color/Material: TrueTimber Viper Snow (Camo), Battleship Gray Cerakote (Receiver) 
• Stock Material: Synthetic 
   

Detailed Features 

The Active Valve gas system adjusts for different load pressures, which means the shotgun cycles reliably from 2.75" light loads through heavier 3" shells without manual adjustment. The oversized charging handle is easier to operate with gloves on, which matters for cold-weather waterfowl work. The elongated elevator is designed to pinch-free for faster loading under pressure. The optics-cut receiver accepts red dot sights directly, and HiViz CompSight fiber optic sights are included. The synthetic stock is suitable for repeated wet-weather use. 
 

Usage Scenarios 

The Viper Snow finish is purpose-built for late-season hunting over snow or in standing corn. The gas system's load adaptability makes it practical for hunters who run mixed loads during a hunt. The optics cut is useful for hunters who prefer a red dot for low-light shooting.

The 940 Pro Snow Camo draws strong praise from waterfowl hunters who appreciate its specific feature set. The Active Valve gas system gets called out positively for cycling through varied loads without drama. The snow camo is well-liked for its effectiveness in winter environments, and the cold-weather ergonomics (oversized charging handle, elevated elevator) reflect that the design was actually thought through for waterfowl conditions.

The most common criticism is weight: 7.75 lbs is substantial, and some buyers note fatigue during long walks to the blind or extended shooting sessions. A few discussions mention price comparisons with competing waterfowl-specific shotguns. Overall feedback leans positive, with most owners recommending it for serious waterfowl hunting.