The Winchester SX4 Field is a 12-gauge semi-automatic shotgun with a 28" barrel and 3" chamber. The walnut stock has a satin oil finish with a smaller pistol grip designed for a more natural hand position. At 6 lbs. 12 oz. and 49" overall, it's a standard field gun length well-suited to bird hunting and sporting clays. 
 

Key Specifications 

• Brand: Winchester 
• Model Name: SX4 Field 
• Gauge: 12 GA 
• Barrel Length: 28" 
• Overall Length: 49" 
• Weight: 6 lbs. 12 oz. 
• Capacity: 4+1 rounds (2-3/4" shells) 
• Chamber Size: 3" 
• Action Type: Semi-Automatic 
• Finish Color: Matte Black with Walnut Stock 
   
  Back-Bored Technology opens the bore diameter slightly to improve shot pattern density and consistency. The Active Valve gas system runs light target loads and heavy hunting loads without swapping parts. The TruGlo Long Bead fiber-optic front sight is easy to pick up in low light. Matte black aluminum receiver keeps weight down. The Inflex recoil pad deflects the comb away from your cheek on firing.

The SX4 Field 12 GA in black/walnut gets consistent positive reviews from hunters and sport shooters. Smooth cycling, manageable recoil, and the look of the walnut-over-black combination are the most common talking points. Owners appreciate how it handles a variety of loads without adjustment.

Ergonomics are well-received: the smaller pistol grip on the walnut stock is mentioned as contributing to a natural, repeatable cheekweld. Disassembly is occasionally noted as slightly more involved than some competing designs, though it doesn't appear to be a real deterrent for most owners.

A few users report needing a short break-in period with light loads before reliable cycling. Overall sentiment leans strongly positive with most recommending it as a dependable field gun.