The Winchester SX4 Waterfowl Hunter is a semi-automatic shotgun chambered in 20 GA, built around the needs of hunters who spend long days in the marsh. The Mossy Oak Shadow Grass Habitat camo covers the entire gun and works well in wetland vegetation. At 6 lbs 10 oz with a 26-inch barrel and 47-inch overall length, it handles quickly without feeling flimsy. 
 

Key Specifications 

• Model: SX4 Waterfowl Hunter 
• Caliber: 20 GA 
• Action: Semi-Automatic 
• Barrel Length: 26 inches 
• Overall Length: 47 inches 
• Weight: 6 lbs 10 oz (6.7 lbs) 
• Capacity: 4 rounds (2¾" shells) 
• Finish: Mossy Oak Shadow Grass Habitat 
   

Features 

The 3-inch chamber handles a wide range of loads, from light target rounds to heavier waterfowl shells. The Invector Plus flush choke system ships with Full, Modified, and Improved Cylinder chokes. An Inflex technology recoil pad noticeably reduces felt recoil over a long morning in the blind. Fiber optic front sights give a clear sight picture in the dim light of early shooting hours.

Owners of the SX4 Waterfowl 20GA consistently mention its cycling reliability across a range of load weights, which matters when conditions change mid-hunt. The lightweight build gets frequent credit from hunters covering ground on foot through marshes and dense cover.

The Mossy Oak finish draws positive comments both for concealment and for looking the part. Recoil management is a recurring topic, with most users finding the gun comfortable even after extended range sessions, a point that seems to resonate especially with newer shooters.

Some owners discuss adding aftermarket chokes or swapping sights, treating the SX4 as a solid starting platform. On value, the general take is that Winchester delivers dependable performance at a price that holds up well against comparable semi-auto waterfowl guns.

Complaints are uncommon in most discussions, and when they appear they tend to be minor fit-and-finish observations rather than functional concerns.