The Mossberg 940 Pro Waterfowl is a semi-automatic 12 GA shotgun with a Mossy Oak Shadowgrass Blades finish and a 28" barrel. It has tang safety, Hiviz Compsight fiber optic sights, and the X-Factor Extended Accu-Choke system for versatile pattern control. An optic-ready configuration allows mounting of additional sighting options. 
 

Key Specifications 

• Brand: Mossberg 
• Model Name: 940 Pro Waterfowl 
• SKU: 2024900870 
• UPC: 015813851640 
• Action: Semi-Auto 
• Caliber/Gauge: 12 GA 
• Chamber: 3" 
• Barrel Length: 28" 
• Overall Length: 48.75" 
• Weight: 7.75 lbs 
• Capacity: 4+1 rounds 
• Sights: Hiviz Compsight Fiber Optic 
• Grip Type: Standard 
• Trigger Type: Standard 
• Safety Mechanism: Tang Safety 
• Finish Color/Pattern: Mossy Oak Shadowgrass Blades 
   

Detailed Features 

• Semi-Automatic Action: Fast follow-up shots without manual cycling. 
• Hiviz Compsight Fiber Optic Sights: Visible in varied lighting for faster target acquisition. 
• X-Factor Extended Accu-Choke System: Multiple choke options for different game and shot distances. 
• Optic Ready: Factory configured for mounting optics.

Owners of the Mossberg 940 Pro Waterfowl in Mossy Oak report reliable performance in wet field conditions. The semi-auto action cycles smoothly through different ammunition types, and the Mossy Oak Shadowgrass Blades finish blends well in marsh and grass environments.

Grip and overall balance draw consistent praise. The potential for optics and sling attachments comes up in customization discussions. At 7.75 lbs the weight is considered reasonable for the feature set, and most hunters rate the price as competitive given the build quality. Regular cleaning is noted as necessary for sustained semi-auto reliability, but that is expected with any gas-operated system.