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Winchester

Winchester SX4 Waterfowl Hunter 12 Gauge 28" Semi-Auto TrueTimber Prairie

Our editorial team reviews specifications, product data, and field-use information to keep pages accurate.

12 Gauge

A 28-inch barrel and 4+1

Self-adjusting Active

Valve system cycles a wide

Quadra-vent Technology

Helps adjust gas pressures and

Invector-plus Flush

F, M, and IC chokes

Truglo Fiber

Optic front sight for quick

$999.99
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SKU: 511258392-048702019067

Overview

Built for hunters who want a 12-gauge semi-auto suited to waterfowl setups, this shotgun pairs a 28-inch barrel with a 4+1 capacity and a 3-inch chamber. Its self-adjusting active valve system is designed to cycle a wide range of loads while helping reduce felt recoil, and the gas system uses Quadra-Vent technology. The fixed textured grip panel stock, Truglo fiber optic front sight, and reversible safety button support practical handling in the field. At 7 pounds with a digital camouflage finish, it is aimed at right-handed hunters looking for a streamlined, purpose-driven shotgun for blind or marsh use.

Why Hunters Choose the Winchester

Semi-auto Action

12 gauge chambering for versatile

28-inch Barrel

49-inch overall length suit a

Self-adjusting Active

Valve system cycles a wide

Quadra-vent Technology

Helps reduce felt recoil during

Includes Invector-plus

Flush chokes: F, M, and

Key Features

  • 12 gauge semi-auto shotgun with a 28-inch barrel and 4+1 capacity
  • Self-adjusting active valve system cycles a wide variety of loads
  • Quadra-Vent technology helps adjust gas pressures and reduce felt recoil
  • Invector-Plus flush choke configuration with F, M, and IC chokes included
  • TruGlo fiber optic front sight for quick target acquisition
  • Digital camouflage stock finish with fixed textured grip panels

Best Used For

  • Waterfowl hunters wanting a 12-gauge semi-auto with a 28-inch barrel and 4+1 capacity
  • Right-handed shooters who prefer a reversible safety button and textured grip panels
  • Hunters carrying a 7-pound shotgun for long days in blinds or marshes
  • Users who want included choke options for adapting to different waterfowl setups
  • Shooters looking for a semi-auto with gas-operated cycling and reduced felt recoil

Specifications

ActionSemi-Auto
Barrel DescriptionBack-Bored Vent Rib
Barrel Length28
Barrel Length Range28 To 28.99
Capacity4+1
Chamber3
Choke ConfigurationInvector-Plus Flush
Chokes IncludedF,M,Ic
Gauge12 Gauge
HandRight
Overall Length49 in
SafetyReversible Safety Button
SightsTruglo Fiber Optic Front
Stock DescriptionFixed Textured Grip Paneled
Stock Finish GroupDigital Camouflage
TriggerDrop-Out
Weight112 oz
Weight Range7 Lbs To 7.99 Lbs

Pros

  • Semi-auto action with 12 gauge chambering for versatile hunting use.
  • 28-inch barrel and 49-inch overall length suit a balanced field setup.
  • Self-adjusting active valve system cycles a wide variety of loads.
  • Quadra-Vent technology helps reduce felt recoil during shooting.
  • Includes Invector-Plus flush chokes: F, M, and IC.
  • TruGlo fiber optic front sight supports quick target acquisition.

Considerations & Trade-offs

  • The 4+1 capacity and 3" chamber make this a practical field shotgun, but it is still a 12 gauge semi-auto with a 28" barrel, so it may feel less compact than shorter upland or blind guns.
  • The included choke set is limited to F, M, and IC, so hunters wanting a different patterning setup will need to plan around additional choke options.
  • At 7 lbs, it sits in a middle ground for carry weight: manageable for long days, but not the lightest option if minimizing fatigue is the top priority.
  • The reversible safety button and right-hand configuration are useful details to confirm fit and preference before purchase, especially for left-handed shooters.

Suggested Comparisons

  • Waterfowl semi-automatic shotguns
  • 12 gauge shotguns
  • 3-inch chamber shotguns
  • Camouflage-pattern shotguns

Suggested Accessories

  • Gun cleaning kit
  • Shotgun sling
  • Choke tube case
  • Shotgun case

Frequently Asked Questions

What type of action does the Winchester SX4 Waterfowl Hunter use?

It is a semi-auto shotgun in 12 gauge.

What are the listed capacity and chamber size?

The listed capacity is 4+1, and the chamber is 3 inches.

What barrel and choke setup is included?

The shotgun is listed with a 28-inch barrel, Invector-Plus Flush choke configuration, and chokes included are F, M, and IC.

What features are listed for the sighting and safety controls?

It includes a Truglo fiber optic front sight and a reversible safety button.

What finish and stock details are provided?

The stock finish group is listed as digital camouflage, and the stock description is fixed textured grip paneled.