Description
If you’re a waterfowl hunter who demands a fast, reliable, and soft-shooting semi-auto, the Winchester SX4 Waterfowl 12/26 MOBL 3.5″# is your new best friend in the blind. This 12-gauge cycles everything from light 2¾” loads to heavy 3½” magnums, and the 26″ barrel with MOBL (Mid-Obstructed Barrel) choke system patterns tight for ducks and geese. It’s built on Winchester’s proven Active Valve gas system, so it kicks less and runs cleaner than most. At $1072.63, you’re getting a field-tested shotgun that’s ready for mud, cold, and long days on the water.
Specifications
| Manufacturer | Winchester Repeating Arms |
|---|---|
| Model | SX4 Waterfowl |
| Material | Aluminum alloy receiver, synthetic stock (per manufacturer specs) |
| Compatibility | 12-gauge, 2¾” to 3½” shells, MOBL choke tubes (Invector-Plus pattern) |
| Finish | Matte black with TrueTimber® camo stock |
| Weight | Approximately 6.75 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- Active Valve Gas System – why it matters: it self-regulates gas pressure to cycle every load reliably, from target loads to 3½” magnums, without beating you up. Less felt recoil means faster follow-up shots on crossing mallards.
- 26″ MOBL Barrel – why it matters: the Mid-Obstructed Barrel design improves pattern density and constriction uniformity, giving you tighter, more consistent shot strings on geese at 40 yards.
- TrueTimber® Camo Stock – why it matters: blends into marsh grass, cattails, and timber, so ducks and geese don’t flare. The synthetic stock is also waterproof and scratch-resistant.
- Inflex Technology® Recoil Pad – why it matters: this directional recoil pad reduces felt recoil by up to 40% compared to standard pads, so you stay comfortable shooting a box of heavy 3½” loads.
- Bolt-Release Button and Oversized Controls – why it matters: gloved hands operate the bolt release, safety, and bolt handle easily in cold weather or when your hands are wet from decoy setup.
Who It’s For
This shotgun is for the southern waterfowl hunter who spends mornings in flooded timber and afternoons in a layout blind. It’s also a great fit for the dove hunter who wants a semi-auto that can handle 3½” shells for geese but still shoots light target loads for doves. If you’re a left-handed shooter, note the SX4 is right-hand only.
Pros & Cons
- Pros: Soft recoil, reliable cycling with all loads, lightweight for a 3½” gun, camo pattern blends well, affordable for a premium waterfowl auto.
- Cons: The synthetic stock can feel a bit slick when wet or muddy; some shooters add a stick-on grip pad. Also, the MOBL choke tubes are proprietary to the Invector-Plus system, so you can’t use standard Win-Chokes.
Comparison: Winchester SX4 vs. Competitors
| Feature | Winchester SX4 Waterfowl | Benelli Super Black Eagle 3 | Remington V3 Waterfowl Pro |
|---|---|---|---|
| Weight | 6.75 lbs | 7.1 lbs | 7.2 lbs |
| Barrel Length | 26″ | 26″ | 28″ |
| Chamber | 3½” | 3½” | 3½” |
| Gas System | Active Valve (self-regulating) | Inertia (no gas) | Versaport (gas) |
| Camo Finish | TrueTimber® | Realtree Max-5 | Mossy Oak Bottomland |
| Price | $1,072.63 | $1,699.99 | $1,199.99 |
| Recoil Pad | Inflex Technology | Comfortech 3 | Pro-Bore |
FAQ
Does the Winchester SX4 Waterfowl come with choke tubes?
Yes, it includes three MOBL (Mid-Obstructed Barrel) choke tubes: improved cylinder, modified, and full. These are Invector-Plus pattern chokes designed for optimal pattern density.
Can this shotgun shoot light target loads like 1 oz. 2¾” shells?
Absolutely. The Active Valve gas system self-regulates and cycles everything from 1 oz. target loads up to 3½” magnums without adjustment. It’s one of the most reliable gas guns on the market for mixed loads.
Is the SX4 Waterfowl suitable for left-handed shooters?
The standard model is right-handed only. Winchester does not currently offer a left-handed version of the SX4 Waterfowl. Lefties should look at the Benelli Super Black Eagle 3 in a left-hand configuration.
How does the MOBL choke system differ from standard Invector-Plus?
The MOBL system uses a mid-obstructed barrel design that creates a tighter, more consistent constriction. This results in denser patterns at longer ranges—ideal for geese and late-season ducks.
Ready to Order?
This Winchester SX4 Waterfowl 12/26 MOBL 3.5″# is in stock and ready to ship. At $1,072.63, it’s one of the best values in waterfowl semi-autos. Order now and get it to your FFL in 1-2 business days.
- ✅ Nationwide delivery (all 50 states)
- ✅ Ships 1-2 business days
- ✅ 30-day returns
- ✅ Secure checkout
Browse more: Semi Auto Shotguns | Waterfowl Shotguns | Winchester Shotguns
Last updated: April 2026
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