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The Winchester SX4 Waterfowl Hunter in 20-gauge is a gas-operated semi-automatic shotgun built for hunters who spend serious time in marshes, ponds, and flooded timber. Dressed in Mossy Oak Shadow Grass Habitat camouflage across the receiver, barrel, and stock, this 20-gauge delivers the versatility and reliability Winchester's SX4 platform is known for—in a package that blends seamlessly into wetland environments. With a 28-inch barrel and 3-inch chamber, it's a capable choice for waterfowl hunting without the recoil punch of a 12-gauge, especially in marathon days afield.
The SX4's Active Valve gas system cycles reliably across light target loads and heavy magnum rounds, so you're not limited to a narrow ammunition range. The ventilated rib helps you maintain a consistent sight picture, and Winchester includes three Invector-Plus choke tubes so you can adapt your pattern for pass shooting or close-range decoying. The TRUGLO fiber-optic sight gives you a bright aiming reference in low-light conditions—useful during dawn and dusk hours when waterfowl are most active.
Handling improvements make a real difference in the field. The larger cocking handle and bolt release speed up manipulations when wearing heavy gloves or mittens, while the reversible safety button works for both right- and left-handed shooters. The expanded trigger guard accommodates fingers in gloves without cramping, and the new Inflex Technology recoil pad absorbs punishment. Winchester includes length-of-pull spacers and sling swivel studs, so you can tailor fit and secure the gun to your body and gear.
If you hunt waterfowl in North America and want a mid-gauge shotgun that won't fatigue you over a long season, the SX4 Waterfowl Hunter combines proven action reliability with practical field features and habitat-matched aesthetics.
| Gauge | 20 |
| Chamber | 3 inch |
| Barrel Length | 28 inches |
| Action Type | Gas-operated semi-automatic (Active Valve system) |
| Receiver | Aluminum alloy with Mossy Oak Shadow Grass Habitat finish |
| Barrel Finish | Mossy Oak Shadow Grass Habitat camouflage; ventilated rib |
| Bore | Chrome-plated chamber and bore |
| Stock Material | Composite with Mossy Oak Shadow Grass Habitat finish |
| Choke Tubes | Three Invector-Plus (FMIC) |
| Sight | TRUGLO fiber-optic |
| Recoil Pad | Inflex Technology |
| Safety | Reversible button |
| Included Accessories | Length-of-pull spacers; sling swivel studs |
Yes. The SX4 Waterfowl Hunter is purpose-built for ducks and geese. The 3-inch chamber handles waterfowl loads, the Active Valve gas system cycles them reliably, and the Mossy Oak Shadow Grass Habitat finish is designed for marsh and wetland concealment. The included choke tubes allow you to adjust your pattern for different hunting situations.
The SX4's versatility extends beyond waterfowl, though this specific model is finished and equipped for water hunting. The 20-gauge with a 3-inch chamber can handle various upland and small-game loads depending on your choke selection and local regulations.
The Winchester SX4 Waterfowl Hunter comes with three Invector-Plus choke tubes, allowing you to change your shot pattern to match your hunting range and style.
Yes. The shotgun includes sling swivel studs pre-installed, so you can attach a sling for easier carry and transition in the field.

SKU: 120923627 • Weight: 6.75oz