The Mossberg 940 Pro Waterfowl is a semi-automatic shotgun chambered in 12 Gauge with a 3-inch chamber and a 28-inch barrel. It holds 4 rounds and comes in Realtree Legacy camo with a fiber optic front sight and an optic-ready receiver cut for the Shield RMSc footprint. The X-Factor extended choke tube is included. 
 

Key Specifications 

• Brand: Mossberg 
• Model: 940 Pro Waterfowl 
• Caliber: 12 Gauge 
• Action: Semi Auto 
• Capacity: 4+1 
• Barrel Length: 28 in 
• Chamber: 3 in 
• Finish/Camo: Realtree Legacy 
   

Detailed Features 

• 28-inch barrel with X-Factor extended choke tube 
• Optic-ready receiver cut for Shield RMSc footprint 
• Fiber optic front sight 
• Realtree Legacy camo coverage 
• 4-round capacity in 12 Gauge 3-inch

Owners of the Mossberg 940 Pro Waterfowl consistently highlight the gas-operated action's reliability across cold and wet hunting conditions, which matters most in a waterfowl-dedicated platform. The Realtree Legacy pattern gets strong marks for field concealment.

The optic-ready Shield RMSc cut is a feature many owners use immediately, and the fiber optic front sight works well as a backup. The X-Factor extended tube gets positive feedback for pattern performance, though some hunters swap it for a different constriction depending on load and range.

At its price point, opinions on value split somewhat. Hunters who compare it directly to the competition consider it a strong performer. Those who do not shoot heavy volume in a season sometimes question whether the pro-grade feature set is necessary, but the 940 Pro Waterfowl has generally earned a good reputation for both durability and cycling consistency with steel shot loads.