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Overview
The Win SX4 12GA 28" 3" BLK SYN is a lightweight, fast-cycling semi-auto shotgun with an Active Valve system that handles all 12-gauge loads, backed by Winchester reliability and a 5-year warranty.
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The Win SX4 12GA 28" 3" BLK SYN is an autoloading shotgun built for speed, reliability, and handling. Lighter than its predecessors, this semi-auto cycles faster, swings smoother, and fits more ergonomically. At $905.48, it delivers proven Winchester performance for hunters and shooters who demand a fast, reliable shotgun that won’t beat you up after a long day in the field.
Manufacturer
Winchester
Model
Super X4 (SX4)
Material
Synthetic stock with textured grip panels
Compatibility
12 gauge, 2.75" and 3" shells
Finish
Matte black synthetic stock with corrosion-resistant barrel finish
Weight
Approximately 6.5 lbs (per manufacturer specs)
Condition
New
Key Features
Active Valve System – Why it matters: Self-regulating gas system handles everything from light target loads to heavy 3" magnums without manual adjustment, so you stay on target.
Lighter, Faster Cycling – Why it matters: Reduced reciprocating mass means quicker follow-up shots and less muzzle rise, giving you an edge on fast-flushing birds or clays.
Ergonomic Grip and Forend – Why it matters: The slim, textured grip and forend provide a secure hold in wet or gloved conditions, improving control and reducing fatigue.
Back-Bored Barrel with Invector-Plus Chokes – Why it matters: Back-boring reduces recoil and improves pattern consistency, while the Invector-Plus system gives you five choke tubes for versatile loads.
Inflex Technology Recoil Pad – Why it matters: The soft, stepped pad reduces felt recoil and prevents the stock from slipping off your shoulder, making long days at the range or in the field more comfortable.
Who It’s For
This shotgun is built for waterfowlers, upland hunters, and clay shooters who need a lightweight, reliable autoloader that cycles a wide range of shells. It’s also a solid choice for new shooters transitioning from pump-action to semi-auto, thanks to its low recoil and forgiving handling. If you’re looking for a do-it-all shotgun under $1,000, this fits the bill.
Pros & Cons
Pros: Smooth cycling across loads, lightweight at 6.5 lbs, comfortable ergonomics, excellent recoil reduction, affordable price point for a Winchester semi-auto.
Cons: The synthetic stock can feel a bit hollow compared to wood stocks; some shooters may prefer a more premium finish. Also, the 28" barrel is ideal for field use but may feel long for home defense or tight cover.
Comparison vs. Competitors
Feature
Winchester SX4 12GA 28" 3" BLK SYN
Beretta A300 Outlander
Remington 870 (Pump-Action)
Action Type
Gas-operated semi-auto
Gas-operated semi-auto
Pump-action
Weight
6.5 lbs
6.8 lbs
7.5 lbs
Chamber
3"
3"
3"
Barrel Length
28"
28"
28"
Stock Material
Synthetic
Synthetic
Synthetic
Price
$905.48
$900–$1,000
$500–$600
Recoil Reduction
Inflex Technology pad
Micro-Core pad
Standard pad
The SX4 undercuts the Beretta A300 on weight and offers similar gas-system reliability, while the Remington 870 is a budget-friendly pump-action but lacks the speed and recoil reduction of the SX4’s semi-auto action.
FAQ
What shells does the Win SX4 12GA 28" 3" BLK SYN cycle reliably?
According to Winchester specs, the SX4’s Active Valve system cycles 2.75" target loads, 3" magnums, and everything in between without adjustment. Light target loads (1 oz, 1200 fps) and heavy steel shot (3", 1.25 oz) both run smoothly.
Is the SX4 compatible with aftermarket chokes?
Yes, it uses the Invector-Plus choke system, which is shared with many Winchester and Browning shotguns. You can swap in aftermarket chokes from brands like Briley or Carlson’s for specific patterns.
How does the SX4 compare to the older SX3?
The SX4 is lighter (6.5 lbs vs. 7.2 lbs for the SX3), has a more ergonomic grip, and cycles faster due to reduced reciprocating mass. It also features a softer recoil pad and improved corrosion resistance on the barrel.
Can left-handed shooters use this shotgun?
The SX4 is a right-handed model with a cross-bolt safety. Left-handed shooters can still use it, but the safety and ejection port are set for righties. Winchester does not currently offer a left-handed version of the SX4.
What is the warranty on the Winchester SX4?
Winchester covers the SX4 with a 5-year limited warranty on the receiver and barrel, and a 1-year warranty on the stock and forend. Contact Winchester customer service for specific claims.
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