The Winchester SX4 Field Compact is a 12-gauge semi-automatic shotgun with a 24-inch barrel, satin oil walnut stock, and 4+1 capacity in 2-3/4-inch shells. At 6.80 lbs and 43.75 inches overall, it is on the lighter and shorter end for a field semi-auto, which is the point of the Compact designation. 
 

Key Specifications 

• Brand: Winchester 
• Model Name: SX4 Field Compact 
• Caliber/Gauge: 12 GA 
• Barrel Length: 24 inches 
• Overall Length: 43.75 inches 
• Weight: 6.80 lbs (6 lbs 8 oz) 
• Action Type: Semi-Automatic 
• Chamber Size: 3 inches 
• Capacity: 4+1 rounds (2-3/4" shells) 
• Sights: Truglo Long Bead Fiber Optic Front Sight 
• Stock Material: Satin Oil Walnut Stock and Forearm 
• Finish Color: Brown 
   

Detailed Features 

 
The Invector Plus choke system takes standard Invector-Plus tubes for flexible pattern control. The back-bored vent rib barrel reduces felt recoil somewhat and keeps patterns consistent. The fiber-optic front sight is useful in low light without adding bulk. The ambidextrous crossbolt safety works equally well left- or right-handed. 
 
The walnut stock gives it a more traditional look than the synthetic field guns in this price range, and the satin oil finish is more durable than a high-gloss lacquer in wet conditions.

Owners of the SX4 Field Compact consistently praise the lightweight and the walnut stock's appearance. The semi-automatic action cycles cleanly on a wide variety of loads, and the ambidextrous safety comes up often as a practical detail.

The compact dimensions make it genuinely useful for smaller-framed shooters who struggle to fit full-size field guns, and several owners note they chose it specifically for that reason.

The main criticisms are typical for any semi-auto: some owners report needing a break-in period before it reliably cycled lighter target loads, and a few mention minor issues with specific ammunition types. Build quality is generally rated well for the price tier, though the walnut finish can show wear at contact points over time. Overall sentiment is positive, with the gun's balance and handling drawing the most consistent praise.