The Beretta A400 Xtreme Plus KO is a 20-gauge semi-automatic shotgun with a 28-inch barrel, 3-inch chamber, Gore Optifade Marsh camouflage finish, and Kick-Off recoil reduction system built into the fixed stock. It weighs 6.76 lbs and measures 51 inches overall. 
 

Key Specifications 

• Brand: Beretta 
• Model: A400 Xtreme Plus KO 
• Action: Semi-Automatic 
• Gauge: 20 GA 
• Barrel Length: 28 inches 
• Chamber: 3 inches 
• Capacity: 3+1 rounds 
• Overall Length (OAL): 51 inches 
• Weight: 6.76 lbs. 
• Sights: Bead sight 
• Stock Description: Fixed Kick-Off stock 
• Trigger Type: Chrome-plated 
• Safety Mechanism: Crossbolt safety 
• Finish: Gore Optifade Marsh 
   

Detailed Features 

The Kick-Off hydraulic system in the stock absorbs recoil before it transfers to the shooter, which is particularly practical in a 20-gauge that gets used heavily on upland birds. The gas-operated action cycles smoothly across a range of 20-gauge loads, including lighter field loads. Five Optima-Choke HP options (Full, Improved Modified, Modified, Improved Cylinder, Cylinder) give flexibility across different hunting situations. Chrome-plated trigger provides a crisp, consistent break. At 6.76 lbs the 20-gauge version is lighter and more maneuverable than the 12-gauge A400. Gore Optifade Marsh camo was designed specifically for waterfowl environments and conceals effectively near water. 
 

Usage Scenarios 

• Waterfowl Hunting: Optifade Marsh camo and reliable semi-auto cycling suit duck and goose hunting over water or in marsh cover. 
• Upland Hunting: At 6.76 lbs with a 20-gauge's manageable recoil, this gun carries comfortably for hours of upland bird hunting. 
• Sport Shooting: Gas-operated action and low recoil suit longer sporting clays rounds.

The Beretta A400 Xtreme Plus KO in 20GA Optifade Marsh draws positive feedback primarily for its light weight and smooth cycling. At 6.76 lbs, owners note it's noticeably easier to carry than 12-gauge alternatives for the same shooting session length, and the recoil reduction is appreciated even in a 20-gauge. The Optifade Marsh finish is well-regarded for its concealment effectiveness in wetland environments.

The semi-auto reliability gets consistent positive mention across a range of load types. Price is the main criticism. It sits at the high end of the 20-gauge semi-auto category, and some buyers question whether the premium over budget alternatives is justified for their use frequency. A few owners also note personal preferences for different gauges or configurations. Overall, those who choose it for serious hunting use report it performs well.