Mossberg SX4 12 28 Waterfowl, with sights Shotgun

The Winchester Super X4 Waterfowl with Moose is a semi-automatic shotgun engineered specifically for waterfowl hunting and tough marsh conditions. Built on Winchester's proven Active Valve gas operating system—the same platform that established reliability across the SX3 and SX2 lineups—this shotgun delivers consistent cycling across a wide range of ammunition loads while minimizing felt recoil. The 12-gauge, 3.5-inch chamber accommodates both standard and magnum waterfowl ammunition, providing versatility for varying hunting scenarios and shot selection.

The 28-inch invector-plus barrel is optimized for pattern density at typical waterfowl distances. Three interchangeable choke tubes—full, modified, and improved cylinder—ship with the shotgun, allowing shooters to adjust constriction based on distance, decoy spread configuration, and target species. This modular approach reduces the need for multiple barrels while maintaining pattern control. The shotgun features sling swivel studs for field carry systems, a standard requirement for blind work and long-distance hunting applications.

This Winchester SX4 Waterfowl shotgun is purpose-built for serious waterfowlers who operate in salt-air, wet, and demanding environments where corrosion resistance and reliable gas-system operation are non-negotiable. The Active Valve design is particularly effective in cold-weather conditions, a critical advantage for late-season hunting. Whether working coastal marshes, freshwater impoundments, or offshore blinds, operators benefit from the proven track record of this platform across professional and recreational hunting communities.

In the semi-automatic waterfowl shotgun category, the SX4 platform competes directly against gas-operated systems from other major manufacturers. The Active Valve system, refined through two previous generations, represents a mature design with documented reliability in harsh field conditions. This particular configuration—12-gauge, 3.5-inch chamber, 28-inch barrel, with included choke tubes—is the standard workhorse setup preferred by waterfowl hunters who prioritize field-proven performance over novelty features.