The Winchester SX4 Field is a 12-gauge semi-automatic shotgun with a 26" barrel and 3" chamber. At 6.10 lbs. it handles well on long hunts or clay days without much fatigue. Turkish walnut stock with a satin finish, matte black aluminum receiver, and Invector Plus flush choke system (F, M, IC included). 
 

Key Specifications 

• Brand: Winchester 
• Model Name: SX4 Field 
• Action: Semi-Automatic 
• Caliber/Gauge: 12 GA 
• Barrel Length: 26 inches 
• Chamber Size: 3 inches 
• Capacity: 4+1 rounds (two-and-three-quarter inch shells) 
• Overall Length (OAL): 47 inches 
• Weight: 6.10 lbs 
• Sights: TruGlo Long Bead Fiber Optic Front Sight 
• Stock Material: Turkish Walnut 
• Safety Type: Ambidextrous Crossbolt 
• Choke Configuration: Invector Plus Flush (includes F, M, IC chokes) 
   
  The Active Valve gas system cycles a wide range of loads from light target loads to heavy field loads without adjustment. The drop-out trigger group pulls free for cleaning without tools. The Inflex recoil pad redirects the comb away from the cheek during recoil, which most shooters notice as a real reduction in felt impact. The ambidextrous crossbolt safety works for either hand. TruGlo fiber-optic bead improves visibility in lower-light shooting conditions.

The SX4 Field 12 GA 26" draws favorable reviews from bird hunters and clay shooters. Reliability with varied loads is the most consistent theme: the Active Valve gas system handles everything from light 7/8 oz. target loads to 3" magnum hunting rounds without issues after a brief break-in period that a few owners mention.

The Turkish walnut and overall fit and finish are regularly praised as nicer than what's typically found at the price point. The shotgun swings well at 6.10 lbs. and the recoil pad does what it claims.

Critical feedback is limited. Weight is occasionally flagged - a few users note it runs heavier than comparable inertia-operated shotguns. Pricing sits above entry-level semi-autos, which generates some comparison discussion. A handful of owners note that certain low-brass light loads need a round or two to cycle properly until the gun loosens up.