The Beretta A400 Xtreme Plus is a 12-gauge semi-automatic shotgun built for demanding field conditions. It comes in Realtree Max-5 camo and chambered for 3.5-inch shells, which means it handles the heavy waterfowl loads most hunters actually run. 
 

Key Specifications 

• Brand: Beretta USA 
• Model: A400 Xtreme Plus KO 
• Gauge: 12 GA 
• Action: Semi-Automatic 
• Capacity: 2 Rounds (2+1) 
• Barrel Length: 28 inches 
• Weight: 7.4 lbs. 
• Chamber Size: 3.5 inches 
• Finish: Realtree Max-5 Camo 
   

Detailed Features 

The Kick-Off Mega recoil reduction system is the standout feature here. It uses a hydraulic mechanism built into the stock to absorb a significant portion of recoil before it reaches the shooter -- noticeably different from standard shotguns when running heavy 3-inch or 3.5-inch loads all day. 
 
The Steelium barrel handles steel shot without issue, which matters for waterfowl hunting where lead is prohibited. Optima-Choke HP system gives you versatile choke options for different shot patterns. Sights are a fiber optic front bead with a mid bead, readable in low-light conditions. 
 
At 7.4 lbs. it's not light, but the weight helps manage recoil on heavy loads.

The A400 Xtreme Plus has a strong reputation among waterfowl hunters. Reliability comes up in nearly every positive review -- it cycles a wide range of loads cleanly, from light target shells to heavy 3.5-inch waterfowl rounds, and malfunctions are rare in most owner reports. The semi-auto action makes follow-up shots fast, which is the main reason this model is popular in duck and goose blinds.

The Kick-Off system gets consistent praise. Shooters who run 3-inch and 3.5-inch loads through dozens of rounds in a session report noticeably less fatigue compared to similar shotguns without recoil reduction. People sensitive to recoil particularly appreciate it.

The Realtree Max-5 camo finish is well-regarded for blending into marsh and wetland environments.

The main complaints are about price -- it's at the higher end of the semi-auto shotgun market. A minority of users also find it slightly heavier than expected for a field gun, though most accept that as a trade-off for the recoil reduction. Overall sentiment is strongly positive among people who hunt with it regularly.