The Rob Roberts A400 RR Custom Xtreme Plus is a semi-automatic shotgun built on a Beretta A400 Xtreme Plus platform chambered in 12 Gauge with a 3.5-inch chamber and a 26-inch vented rib steel barrel. It has a 2+1 capacity and comes in a DC Marsh Waterfowl camo pattern on a synthetic stock. The aluminum receiver is finished with an Optima HP choke system. 
 

Key Specifications 

• Brand: Rob Roberts 
• Model: A400 RR Custom Xtreme Plus 
• Caliber: 12 Gauge 
• Action: Semi Auto 
• Capacity: 2+1 
• Barrel Length: 26 inches 
• Color/Finish: DC Marsh Waterfowl Camo 
   

Detailed Features 

• 3.5-inch chamber for maximum payload loads 
• 26-inch vented rib steel barrel with Optima HP choke 
• DC Marsh Waterfowl camo pattern on synthetic stock 
• Full-size configuration with aluminum receiver 
• Right-hand orientation

Owners of the Rob Roberts A400 RR Custom Xtreme Plus often note the DC Marsh camo finish as a practical field choice for waterfowl hunting. The Beretta A400 base platform has a strong reputation for cycling a wide range of loads, and Rob Roberts' custom work carries that reliability over.

The 26-inch barrel length is a point of discussion among buyers. Waterfowl hunters generally appreciate the swing and the extended sight radius; those wanting a more compact handling shotgun sometimes wish for a shorter option. The 3.5-inch chamber is seen as a genuine field advantage when steel shot is required at distance.

Value is the most debated aspect. The A400 RR Custom sits above a stock Beretta A400 in price, and buyers who care primarily about the camo pattern and Rob Roberts' custom fit and finish tend to feel justified. Others question whether the premium over a factory Beretta model is worth it.