Winchester SX4 12 Gauge 26″ 3.5″ Black Synthetic
Pros & cons
What works
- Handles 3.5-inch shells reliably — 25% less recoil than inertia-driven systems
- Includes 3 choke tubes — Full, Modified, Improved Cylinder for pattern flexibility
- Weighs 7.3 pounds — 1.2 pounds lighter than most pump-action 3.5-inch shotguns
- TruGlo fiber optic sight — 3x brighter than standard brass beads in low light
Trade-offs
- No stock spacers included — requires aftermarket purchase for length adjustment ($40-60)
- Choke wrench is bare steel — prone to rust without oiling in wet conditions
- Synthetic stock has minimal texturing — requires gloves for secure grip in rain
Video review
Expert review
Specs at a glance
About this product
The Winchester SX4 12 Gauge 26" 3.5" Black Synthetic is a gas-operated semi-automatic shotgun designed for high-volume waterfowl and turkey hunting. It handles 3.5-inch magnum shells without excessive recoil thanks to its Inflex recoil pad system. The 26-inch barrel with Invector-Plus chokes provides consistent patterns across distances.
What is the Winchester SX4 used for?
This shotgun is built for high-volume waterfowl and turkey hunting where 3.5-inch magnum shells are standard. Its gas operation handles heavy loads reliably, while the 26-inch barrel balances maneuverability in blinds with adequate swing for passing shots. The synthetic stock withstands marsh conditions better than wood alternatives like the Stevens 555 Sporting O/U.
How does the Winchester SX4 compare to the Stevens 555 Sporting O/U?
The SX4 cycles faster than the Stevens 555 Sporting O/U due to its semi-automatic action versus break-action design. The Stevens 555 delivers tighter patterns at 40 yards with its fixed choke system, but the SX4 includes three interchangeable chokes for versatility. For rapid follow-up shots on flushing birds, the SX4 outperforms; for precise trap shooting, the Stevens 555 retains an edge.
What does it weigh and what are the dimensions?
The SX4 weighs 7 pounds 3 ounces empty, with an overall length of 47 inches and 14.25-inch length of pull. The 26-inch barrel has a 3.5-inch chamber and accepts Invector-Plus chokes with a 0.742-inch bore diameter. This balances swing weight for most adult shooters while remaining compact enough for blind use.
Who is this NOT for?
This shotgun isn't suitable for beginners or shooters under 5'8" due to its 14.25-inch length of pull and magnum recoil. The 7.3-pound weight and 47-inch length make it cumbersome for youth or small-frame hunters. For smaller shooters, consider the Stevens 555 Sporting Compact with its 13-inch length of pull.
What's in the box?
You get the shotgun, three Invector-Plus choke tubes (Full, Modified, Improved Cylinder), a choke tube wrench, and a 12-gauge bore brush. The chokes are steel-shot compatible, and the wrench fits all included tubes. No extra spacers or shims are included for stock adjustment.
Is the Winchester SX4 worth it at $944.99?
At $944.99, this shotgun justifies its price for hunters needing 3.5-inch shell capability and reliable semi-auto function. It costs $300 less than comparable Benelli models while offering similar gas-operated reliability. For budget-conscious shooters, the Stevens 334 series provides bolt-action options under $500, but lacks semi-auto speed.
Key attributes
| upc | 048702006869 |
| manufacturer | Winchester |
| manufacturer part number | 511205291 |
| action | Semi-Auto |
| atf type | Shotgun |
| barrel finish | MATTE BLACK |
| barrel length | 26" |
| caliber/gauge | 12 Gauge |
| capacity | 3 + 1 |
| chokes included | F,M,IC |
| color | Black |
| length | 37.4000 |
| model | SX4 |
| package height | 3.3 |
| package width | 9.5 |
| product type | Shotgun |
| safety | Ambidextrous Crossbolt |
| shipping weight | 9.25 |
| sights | TruGlo Fiber Optic Front |
| sights type | Fixed Sights |
| units per box | 1 |
| magazine included | Yes |
Frequently asked questions
- Is it compatible with steel shot?
- Yes, all included Invector-Plus choke tubes are rated for steel shot up to size #2. Do not use Full choke with steel larger than BBB shot to avoid barrel damage. Winchester recommends Modified choke for most steel waterfowl loads.
- Does it fit in a 48-inch hard case?
- Yes, the 47-inch overall length fits standard 48-inch cases with 0.5-inch clearance. For added protection, Plano All-Weather cases provide 49 inches of interior space. Always verify case dimensions before purchase.
- How long does shipping take?
- Firearms ship within 3 business days to your local FFL dealer. Transit time varies by carrier, but typically arrives in 5-7 business days. You must coordinate pickup with your FFL holder within 30 days of delivery.
- Can I return it if it doesn't fit?
- Returns are accepted within 30 days if unfired and in original packaging. You must pay a 15% restocking fee and return shipping costs. Firearms must be shipped via licensed carrier to our FFL address.