The Winchester SX4 Waterfowl Hunter is a semi-automatic 12-gauge shotgun built around wetland hunting. The 3.5-inch chamber handles full magnum waterfowl loads, and Mossy Oak Shadow Grass Habitat camo covers the entire gun. 
 

Key Specifications 

• Model Name: SX4 Waterfowl Hunter 
• Brand: Winchester 
• Caliber: 12 GA 
• Barrel Length: 28 inches 
• Overall Length: 49 inches 
• Weight: 7 lbs 2 oz 
• Capacity: 4+1 rounds (2-3/4" shells) 
• Chamber Length: 3.5 inches 
• Action Type: Semi-Auto 
• Sights: TruGlo Fiber Optic Front Sight 
• Grip Style: Standard Grip 
• Safety Mechanism: Reversible Button Safety 
• Finish: Mossy Oak Shadow Grass Habitat Camo 
   

Features 

The SX4's inertia-assisted operating system cycles reliably across a wide range of loads, which matters when conditions are cold and wet. Three Invector-Plus choke tubes (Full, Modified, Improved Cylinder) are included for adjusting pattern spread. The TruGlo fiber optic front sight helps in low-light conditions typical of early morning hunts. An Inflex Technology recoil pad reduces felt recoil, particularly relevant with 3.5-inch magnum shells. The aluminum alloy receiver is corrosion-resistant and keeps weight at 7 lbs 2 oz. The reversible button safety accommodates left- or right-handed shooters. 
 

Usage 

Designed for duck and goose hunting in marshes and wetland fields. The 3.5-inch chamber capability opens up the full range of heavy steel shot loads for geese. Also suitable for trap and skeet when conditions permit.

The SX4 Waterfowl Hunter draws strong positive feedback from duck and goose hunters. Reliability in cold, wet conditions is the most frequently cited strength. Owners regularly report that it cycles through a mixed bag of loads without issues. The gas-assisted inertia system handles both light field loads and heavy 3.5-inch magnums without adjustment.

Ergonomics and balance get consistent praise. The shotgun feels well-balanced at 7 lbs 2 oz, and most users find it comfortable for extended sessions. The adjustable stock is appreciated by hunters who want a precise fit. The Mossy Oak Shadow Grass camo is well-regarded for blending into wetland environments.

Weight is mentioned occasionally. Some prefer lighter guns for all-day carry, though 7 lbs 2 oz is moderate for this class. Value relative to price comes up positively in most discussions; owners generally feel the performance justifies the cost compared to competing semi-auto waterfowl guns. Build quality gets high marks for durability under harsh field conditions.