The Winchester SX4 Waterfowl Hunter is a 12-gauge semi-automatic shotgun with a 3.5" chamber, a 26" chrome-lined barrel, and a Realtree Max-7 synthetic stock. It weighs 7 lbs. at 47" overall. Three InvectorPlus choke tubes (Full, Modified, Improved Cylinder) are included, and the Inflex Technology recoil pad is standard. 
 

Key Specifications: 

• SKU: 2024009680 
• UPC: 048702024511 
• Brand: Winchester 
• Model Name: SX4 Waterfowl Hunter 
• Action: Semi-Auto 
• Caliber/Gauge: 12 GA 
• Chamber: 3.5 inches 
• Capacity: 4+1 rounds 
• Barrel Length: 26 inches 
• Overall Length: 47 inches 
• Weight: 7 lbs. 
• Sights: TruGlo Fiber Optic Front 
• Stock Material: Synthetic with Realtree Max-7 camouflage 
• Safety Feature: Reversible Button 
   

Detailed Features: 

• Aluminum Alloy Receiver: Keeps weight at 7 lbs. while maintaining structural rigidity. 
   
• Chrome-Plated Chamber and Bore: Improves cycling smoothness and corrosion resistance in wet hunting environments. 
   
• TruGlo Fiber Optic Front Sight: Picks up quickly in dawn and dusk light common to waterfowl hunting. 
   
• Inflex Technology Recoil Pad: Deflects the stock heel away from the cheek during recoil, reducing felt impact. 
   
• Three InvectorPlus Chokes Included: Full, Modified, and Improved Cylinder for adjustable pattern density. 
   
• Reversible Safety Button: Accommodates left- and right-handed shooters.

Users of the SX4 Waterfowl Hunter 12 GA report reliable semi-auto cycling across a range of loads, from light target loads to heavy 3.5" waterfowl ammunition. The gas-operated system's recoil reduction is mentioned consistently as a practical advantage during multi-round shooting sessions.

Handling and ergonomics get positive marks -- the balance feels right for most users, and the reversible safety and adjustable stock are appreciated features. The Realtree Max-7 camo is well-liked for concealment in marsh and flooded timber environments.

A minority of users report jamming issues under specific conditions, and some note the gun is less versatile without accessory modifications for upland use. Overall sentiment is positive among waterfowl hunters who prioritize cycling reliability and recoil management.