Description
The Winchester SX4 Waterfowl Hunter 20 Gauge 28 in is a purpose-built, gas-operated semi-automatic shotgun designed for hunters who demand reliability in the marsh and field. With a TrueTimber Prairie camouflage finish across the stock, barrel, and receiver, this 20-gauge cycles a wide range of loads while keeping recoil manageable, making it a trusted companion for long days afield.
| Manufacturer | Winchester Repeating Arms |
|---|---|
| Model | SX4 Waterfowl Hunter |
| Material | Synthetic stock with textured grip panels; steel alloy receiver |
| Compatibility | 2.75- and 3-inch 20-gauge shells (per manufacturer specs) |
| Finish | TrueTimber Prairie camouflage |
| Weight | 6.5 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- Active Valve Gas System – This self-cleaning gas system cycles everything from light target loads to heavy 3-inch waterfowl loads, reducing the need for frequent cleaning and keeping the action running smoothly in muddy conditions.
- Inflex Technology Recoil Pad – The proprietary recoil pad reduces felt recoil by up to 48%, letting you stay on target for follow-up shots without flinching.
- TrueTimber Prairie Camouflage – The full-coverage camo pattern blends into marsh grass and field stubble, helping you stay hidden from sharp-eyed ducks and geese.
- Invector-Plus Choke Tubes – Three flush-mounted chokes (Full, Modified, Improved Cylinder) let you tailor the shot pattern for decoying mallards or pass-shooting high flyers.
- TruGlo Fiber-Optic Front Sight – The bright fiber-optic bead picks up ambient light, giving you a clear sight picture in the low-light conditions of dawn and dusk hunts.
Who It’s For
This shotgun is built for the waterfowl hunter who spends mornings in a duck blind or afternoons chasing doves across a cut cornfield. If you want a light, fast-swinging 20-gauge that handles heavy loads without punishing your shoulder, the SX4 Waterfowl Hunter is a solid choice. It also suits upland hunters who need a camo gun that won’t spook birds.
Pros & Cons
- Pro: The gas system cycles reliably with a wide range of loads, from 7/8-ounce target shells to 1-1/4-ounce steel waterfowl loads.
- Pro: At just 6.5 pounds, it’s easy to carry all day through the marsh or across fields.
- Con: The synthetic stock doesn’t have the same warmth or feel of a walnut stock, which some traditionalists might miss.
Comparison
| Feature | Winchester SX4 Waterfowl Hunter 20 Gauge | Benelli M2 Field 20 Gauge | Remington V3 Waterfowl Pro 20 Gauge |
|---|---|---|---|
| Action Type | Gas-operated semi-auto | Inertia-operated semi-auto | Gas-operated semi-auto |
| Weight | 6.5 lbs | 5.8 lbs | 7.0 lbs |
| Choke System | Invector-Plus (3 chokes) | Crio (3 chokes) | ProBore (3 chokes) |
| Finish | TrueTimber Prairie | Realtree Max-5 | Mossy Oak Bottomland |
| Price | $1,120.06 | $1,499.00 | $1,299.00 |
| Recoil Reduction | Inflex Technology pad | Comfortech system | SuperCell pad |
FAQ
What shells does the Winchester SX4 Waterfowl Hunter 20 Gauge 28 in cycle?
Per Winchester specs, this shotgun cycles 2.75- and 3-inch 20-gauge shells reliably, from light 7/8-ounce target loads to heavy 1-1/4-ounce steel waterfowl loads.
Is the Winchester SX4 Waterfowl Hunter 20 Gauge 28 in good for left-handed shooters?
This model is a right-handed configuration with a right-handed bolt and cross-bolt safety. Left-handed shooters may want to look at the SX4 left-hand models.
Does the Winchester SX4 Waterfowl Hunter 20 Gauge 28 in come with a case?
No, it ships in a cardboard box without a hard or soft case. We recommend a quality gun case for transport and storage.
How do I clean the Active Valve system on the Winchester SX4 Waterfowl Hunter 20 Gauge 28 in?
Disassemble the bolt and gas piston per the owner’s manual, then wipe down the gas ports and piston with a solvent-soaked cloth. The system is self-cleaning for the most part, but occasional maintenance keeps it running smoothly.
Trust Block
- ✔ Nationwide delivery to all 50 states
- ✔ Ships in 1-2 business days
- ✔ 30-day return policy
- ✔ Secure checkout with encryption
Last updated: April 2026
See more in our Semi Auto Shotguns and Waterfowl Hunting Gear categories.





Reviews
There are no reviews yet.