The Winchester SX4 Hybrid Hunter 26" 12-gauge semi-automatic shotgun combines proven gas-operated reliability with modern ergonomics and finish options built for serious waterfowl hunters. Built on Winchester's Active Valve system—the same proven foundation that powered the legendary SX3—the SX4 refines that mechanical base with improved balance, smoother internal cycling, and user-centric controls that work whether you're hunting in mud, cold, or brush. The 3.5" chamber handles full power loads for ducks and geese, while the 26" barrel with ventilated rib offers fast target acquisition in tight timber and over open water.
The Mossy Oak Bottomlands camouflage pattern works across timber and marsh habitat, and the Cerakote FDE (Flat Dark Earth) finish on the aluminum receiver and barrel resists corrosion and glare without the gloss of traditional bluing. That's waterfowl-specific thinking, not marketing fluff: you get durability where it matters and a finish that doesn't shine when the sun breaks through clouds.
Winchester redesigned the controls for real-world hunting. The larger cocking handle and bolt release let you cycle the action quickly even with wet or gloved hands. A reversible safety button sits within thumb reach, and the wider trigger guard opening accommodates heavier glove layers. The Inflex Technology recoil pad softens the hit of 3.5" magnum loads without adding bulk, and included length-of-pull spacers let you dial in fit. Three Invector-Plus choke tubes give you flexibility across range and shot size, and a TRUGLO fiber-optic sight aids low-light sighting.
If you run a dedicated waterfowl gun or need a versatile semi-auto that handles both field and blind with equal competence, the SX4 Hybrid Hunter brings mature engineering and thoughtful ergonomics to the water.
| Gauge | 12 |
| Chamber Length | 3 1/2" |
| Barrel Length | 26" |
| Overall Length | 47" |
| Length of Pull | 14 1/4" |
| Drop at Comb | 1 3/4" |
| Drop at Heel | 2" |
| Weight | 7 lbs |
| Magazine Capacity | 4 rounds (2 3/4" shells) |
| Receiver | Aluminum alloy with Cerakote FDE finish |
| Barrel | Chrome-plated chamber and bore, ventilated rib, Cerakote FDE finish |
| Stock | Composite, Mossy Oak Bottomlands camouflage |
| Choke Tubes | 3 Invector-Plus (included) |
| Sight | TRUGLO fiber-optic |
| Action Type | Semi-automatic, gas-operated with Active Valve system |
Yes. The SX4 is rated for 3.5" magnum shells and features the Active Valve gas-operated system designed to handle full-power loads. The Inflex recoil pad is included to help manage the increased recoil of 3.5" ammunition.
The gun is chambered for 3 1/2", which means it will chamber and fire 2 3/4" and 3" shells as well. The magazine capacity of 4 rounds refers to 2 3/4" shells; 3" or 3.5" loads will reduce the count slightly due to physical length.
Three Invector-Plus choke tubes are included. The specific constriction/designation is not detailed, but the Invector-Plus standard allows you to use a wide range of aftermarket chokes as well.
The SX4 features a reversible safety button, which aids left-hand operation. However, the complete ambidextrous configuration is not detailed in the specs. We recommend contacting us to discuss left-hand fit and functionality in detail.
Firearm Shipments:
To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.
We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.
We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.
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