The Beretta A400 Upland KO is a 12-gauge semi-automatic shotgun with a 26-inch Steelium barrel, engraved nickel-plated receiver, walnut stock, and a gold-colored trigger. It chambers 3-inch shells, holds 2+1 rounds, and weighs 6.7 lbs. 
 

Key Specifications 

• Model: A400 Upland KO 
• Caliber: 12 Gauge 
• Action: Semi-Automatic 
• Barrel Length: 26 inches 
• Capacity: 2+1 rounds 
• Weight: 6.7 lbs 
• Chamber Size: 3 inches 
   

Detailed Features 

The Steelium barrel is cold hammer-forged for dimensional consistency and durability. The KO recoil-reduction system uses a two-stage mechanism that noticeably softens felt recoil, which adds up over a long field day or when you're running multiple rounds at a clay course. The adjustable shim system lets you change drop and cast at the stock without a gunsmith. Fiber optic front sight aids target acquisition in low light. The nickel-plated receiver with engraving is a visual nod to Beretta's traditional finish work, while the walnut stock gives it the feel of a premium field gun. 
 

Target Audience 

The A400 Upland KO is aimed at upland hunters who want a lightweight 12-gauge with genuine recoil mitigation. At 6.7 lbs it carries well through long covers, and the KO system makes high-volume shooting significantly more comfortable. 
 

Usage Scenarios 

• Upland hunting: light weight, semi-auto follow-ups, and KO recoil system for all-day carry 
• Sport shooting: reliable cycling and quick follow-up shots for clay courses 
• Field use: adjustable shims allow fit customization for different shooters

Owners of the A400 Upland KO consistently highlight the KO recoil system as its most appreciated feature. Users note a meaningful reduction in felt recoil compared to other 12-gauge semi-autos, which makes a difference during extended field sessions.

Beretta's build quality draws routine praise, and the walnut finish is well-regarded for its appearance. Semi-auto action reliability is generally noted as high across various load types.

Weight and price are the two most common points of friction. At 6.7 lbs it's not the lightest upland option, and the price sits above mid-range semi-autos. Most buyers who chose it consider both trade-offs acceptable given the recoil reduction and overall quality.