The Beretta A400 Upland KO is a 12-gauge semi-auto shotgun with a Steelium barrel, engraved nickel-plated receiver, walnut stock, and Beretta's Kick-Off recoil reduction system. It weighs 6.7 lbs with a 28" barrel and chambers 3" shells at 2+1 capacity. 
 

Key Specifications 

• Model: A400 Upland KO 
• Gauge: 12 GA 
• Action: Semi-Automatic 
• Capacity: 2+1 Rounds 
• Barrel Length: 28 inches 
• Weight: 6.7 lbs 
• Chamber Size: 3 inches 
   

Detailed Features 

The Steelium barrel uses a specific alloy and profile that Beretta developed for pattern uniformity and reduced felt recoil. The Kick-Off system is a hydraulic damper built into the stock that absorbs a portion of recoil before it reaches the shooter. It's a measurable difference over a long day of shooting upland birds. The fiber optic front bead is easy to pick up in low morning light. 
 
The nickel-plated engraved receiver has both functional and aesthetic value; the nickel finish resists field corrosion better than standard bluing. The adjustable stock spacers let the shooter dial in drop and cast. 
 

Usage 

At 6.7 lbs the A400 Upland KO carries well through cover. The Kick-Off system makes it more comfortable than a comparable-weight gas gun for high-volume shooting. The walnut stock and engraved receiver mark this as a field gun that doubles as a showpiece.

The Beretta A400 Upland KO 12GA Semi-Auto Shotgun with walnut finish draws consistently positive feedback, with weight and price as the main qualifications.

The walnut stock and engraved nickel receiver attract buyers who want a field gun that looks the part. The Kick-Off recoil reduction system is specifically praised. Owners who shoot high volumes note it makes a real difference in comfort compared to unassisted semi-autos. Reliable cycling across load types is regularly mentioned, and the fiber optic sight is noted as useful in early-morning hunting light.

Weight is occasionally flagged as slightly high relative to other 6.7-lb options, though most find it manageable. Price comes up as a consideration but most reviewers accept it given the quality and KO system.