Description
The Beretta A400 Xtreme Unico KO SA 12ga 26 3.5 Green Rcvr Black Synthetic Stock Blued is a gas-operated semi-automatic shotgun engineered for punishing conditions. It’s built to cycle everything from light target loads to heavy 3.5-inch magnum shells without adjustment, making it a supremely versatile tool for waterfowl, turkey, and upland hunters who face variable weather and ammunition needs. This model features a 26-inch barrel, a distinctive green receiver, and a rugged black synthetic stock for durability where it counts.
Key Features
- Steelium Pro Barrel: Beretta’s proprietary steel and bore treatment for enhanced corrosion resistance and consistent patterns.
- Kick-Off Plus System: An advanced hydraulic recoil damper built into the stock that reduces felt recoil by up to 70%.
- Unico Gas System: Self-compensating gas piston reliably cycles 2¾-inch, 3-inch, and 3.5-inch shells without manual tuning.
- AquaTech Coating: A permanent, non-slip surface treatment on critical metal parts for protection against moisture and abrasion.
- Weighs 7.1 lbs: A balanced weight that aids in swing dynamics without causing fatigue during long days afield.
Specifications & Details
| Specification | Detail |
|---|---|
| Gauge | 12 Gauge |
| Chamber | 3.5″ |
| Barrel Length | 26″ |
| Overall Length | 47.5″ |
| Weight | 7.1 lbs |
| Action | Semi-Automatic, Gas-Operated |
| Stock | Black Synthetic with Kick-Off Plus |
| Receiver Finish | Blued, Green Anodized |
Here’s the thing—when it comes to a shotgun that must perform from a damp duck blind at dawn to a muddy field for turkeys in the afternoon, you need a system that adapts without a second thought. The A400 Xtreme’s Unico gas system is that solution. It’s drop-in ready for any standard 12-gauge shell in your bag, which means no fumbling with adjustments when the birds are working. The 26-inch barrel provides a quick, manageable swing in tight cover, while the 3.5-inch chamber gives you the authority for long-range waterfowl passes. At a price of $1287.60, this is an investment in a platform designed for years of hard use. It ships to Missouri and compliant US states, requiring an FFL transfer for firearm purchases.
Who It’s For
This shotgun is for the serious hunter who demands one gun for multiple seasons. It’s for the Missouri waterfowler who needs reliability in sleet and freezing rain. It’s for the turkey hunter who wants to reduce recoil from heavy magnum loads without sacrificing power. It’s also a practical choice for landowners or sport shooters who need a single, ultra-reliable shotgun that can handle diverse tasks, from predator control to clays. The system is compatible with a wide range of Beretta Optima-Choke HP tubes and aftermarket accessories from brands like Carlson’s.
Pros & Cons
Pros: Exceptional recoil reduction makes shooting heavy loads manageable. Legendary reliability in dirty, wet conditions thanks to the self-cleaning gas system. Versatile chambering handles the full spectrum of 12-gauge ammunition. The corrosion-resistant finishes are not just marketing—they work.
Cons: The Kick-Off Plus stock adds some bulk to the rear of the gun. The premium features command a premium price point compared to basic autoloaders. Some purists may prefer the simpler lines of a traditional walnut stock, but that’s a trade-off for all-weather utility.
Frequently Asked Questions
Q: Does the Kick-Off Plus system make the gun difficult to disassemble for cleaning?
A: Not at all. The recoil damper is a self-contained unit within the stock. Field-stripping the action for routine cleaning is straightforward and does not require you to disassemble the hydraulic system.
Q: Can I use lighter target loads for skeet or sporting clays with this shotgun?
A: Absolutely. The Unico gas system is designed to function with 2¾-inch target loads as light as 1 ounce, all the way up to 3.5-inch magnums. You get consistent, reliable cycling across the board—no changing pistons or springs.
Q: Is the green receiver finish durable, or is it just cosmetic?
A: The green finish is a hard-anodized treatment on the aluminum receiver. It provides excellent corrosion and wear resistance as part of the overall AquaTech protection package. This is functional armor for the gun’s core, not just paint.
Ready to add this versatile, all-weather performer to your arsenal? Check availability and detailed specifications for the Beretta A400 Xtreme Unico KO at firearms-missouri.com for Missouri residents and nationwide.


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