The Winchester SX4 Waterfowl Hunter is a 12 gauge semi-auto shotgun (brand part no. 511258392) built by Winchester for hard hunting in the blind. Finished in TrueTimber Prairie camo from receiver to stock, it is designed to disappear against marsh grass and cut cattails while cycling everything from light target loads to heavy waterfowl magnums. The self-adjusting Active Valve gas system uses Quadra-Vent technology to regulate pressure across a wide range of loads, venting excess gas for cleaner cycling and reduced felt recoil. A slimmer pistol grip, textured gripping surfaces, and an Inflex Technology recoil pad make it comfortable to shoulder through a long morning shoot. It is a natural fit for waterfowl hunters who want speed, reliability, and all-day handling in one gun.

Key Specifications

• Chambered in 12 gauge for versatile waterfowl and field use.
• Runs a 3-inch chamber, handling everything from light target loads to heavy magnum shells.
• The 28-inch barrel uses back-bored technology to pattern more consistently across choke and load combinations.
• Magazine capacity is 4+1, giving hunters a fast follow-up shot without reloading mid-flight.
• Ships with three Invector-Plus choke tubes (Full, Modified, Improved Cylinder) to match pattern density to range.
• The front sight is a TruGlo fiber optic bead, a fixed sight built for quick target acquisition on crossing birds.
• A reversible safety button lets left- and right-handed shooters run the gun the same way.
• The self-adjusting Active Valve gas system with Quadra-Vent technology cycles a wide range of loads while reducing felt recoil.
• Finished in TrueTimber Prairie camo across the stock and metal for concealment in field and marsh settings.
• An Inflex Technology recoil pad with LOP spacers lets shooters fine-tune fit and soften shoulder impact.

Frequently Asked Questions

What gauge is the Winchester SX4 Waterfowl Hunter? It is chambered in 12 gauge with a 3-inch chamber, built to cycle everything from light loads to heavy magnum shells.

How many choke tubes are included? It ships with three Invector-Plus choke tubes, Full, Modified, and Improved Cylinder, covering most waterfowl ranges.

Is this shotgun set up for left-handed shooters? Yes, the reversible safety button makes it easy to configure for right- or left-hand use.

Buy the Winchester SX4 Waterfowl Hunter 12 Gauge Shotgun, 28-inch

This SX4 is built for hunters who spend more mornings in the blind than at the workbench, and the TrueTimber Prairie finish keeps it hidden when it counts most. Browse more semi-auto shotguns from Schaefer Defense, or order this one from our Lubbock, Texas gun shop for fast, insured shipping to your FFL.