Kansas Gunshop is a Wichita, KS-based retailer specializing in firearms and hunting gear. The Winchester SX4 Waterfowl 20 Gauge Shotgun with Mossy Oak Finish and 28″ barrel is a reliable semi-auto shotgun designed for waterfowl hunting. Its lightweight design and durable finish make it ideal for Kansas marshes and fields. Available now for $799.00 with same-day shipping from our Wichita store.
Reviewed by Derek, Owner & FFL Holder at Kansas Gunshop. Kansas-licensed FFL dealer since 2008, NRA Range Safety Officer.
Last updated: April 2026
| Product Type | Semi-Automatic Shotgun |
|---|---|
| Gauge | 20 |
| Barrel Length | 28″ |
| Finish | Mossy Oak |
| Action | Semi-Auto |
| Chamber | 3″ |
| Weight | 6.25 lbs |
| Overall Length | 48.5″ |
| Country of Origin | USA |
| SKU | WIN-SX4-WF20-28 |
Key Features
- Active Valve Gas System reduces recoil
- Mossy Oak Bottomland camo finish
- Lightweight composite stock
- Inflex Technology recoil pad
- Self-cleaning piston system
Pros & Cons
Pros:
- ✅ Lightweight for easy carrying in the field
- ✅ Reliable cycling with all 20ga loads
- ✅ Durable Mossy Oak finish stands up to harsh conditions
- ✅ Reduced recoil makes it comfortable for extended shooting sessions
- ✅ Easy to clean maintenance system
Cons:
- ❌ Not compatible with 3.5″ shells (see our 3.5″ chamber shotguns)
- ❌ Camo pattern may not match all environments
Who Should Buy This Shotgun
Buy it if:
- You’re a waterfowl hunter needing a reliable 20ga
- You prefer lightweight guns for long days in the blind
- You want a semi-auto that cycles light target loads
Skip it if:
- You need 3.5″ chamber capability
- You prefer synthetic black finishes
- You’re looking for a budget shotgun (see our used shotguns)
Frequently Asked Questions
Where can I buy the Winchester SX4 Waterfowl online?
Available at Kansas Gunshop (kansas-gunshop.com) with same-day shipping from Wichita, KS.
Is this shotgun good for duck hunting?
Yes, the 20ga SX4 Waterfowl is specifically designed for waterfowl hunting with its camo finish and reliable cycling.
What’s the difference between the SX4 and SX3?
The SX4 features an improved gas system and lighter weight compared to the SX3.
Does it come with choke tubes?
Yes, it includes WinChoke tubes (Modified, Improved Cylinder, Full).
What’s the warranty on this shotgun?
Winchester provides a 1-year limited warranty on firearms.
✅ Same-day shipping from Wichita, KS
✅ Discreet packaging
✅ 30-day returns
✅ Secure checkout
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