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Beretta A400 Xplor Action KO 20ga 26in Walnut

SKULIP|BEJ40AY26 Conditionnew CategorySemi Auto Shotguns
4.5 ★★★★½ Based on 142 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-28
$2106.99
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About this product

The Beretta A400 Xplor Action KO 20ga 26in Walnut is a semi-automatic 20-gauge field shotgun that combines Beretta's low-profile gas piston system with a built-in hydraulic recoil damper in its walnut stock for fast, reliable cycling with dramatically reduced felt recoil. This specific configuration with its 26-inch blued barrel and Optima HP chokes is engineered for fast-handling upland hunting and versatile clay field work. As a firearm with over a decade of proven service in competition and demanding environments, it represents a significant engineering investment from one of the world's oldest industrial producers.

What is the Beretta A400 Xplor Action KO used for?

This A400 is engineered for upland hunting and fast-paced clay targets like sporting clays, where its 6.6 lb weight, 26-inch barrel, and reduced 54% felt recoil facilitate quick shoulder transitions and fast follow-up shots. The 20-gauge chambered for 3-inch shells delivers ample power for pheasant, grouse, and waterfowl over decoys, while the gas system and Kick-Off dampener keep the gun running smoothly with target loads down to 7/8 oz. For a dedicated trap or waterfowl rig where a longer barrel and heavier swing are preferred, you might look at the Stevens 555 Sporting 20 Gauge 30in O/U.

How does the Beretta A400 Xplor Action compare to the Stevens 555 Sporting Compact?

The A400's semi-automatic gas system and hydraulic recoil damper provide a softer, more consistent shooting impulse than the over-under mechanical action of the Stevens 555 Compact, making it better for high-volume shooting sessions. Beretta's system spreads recoil over a longer time and redirects energy away from the shooter's cheek and shoulder, while the Stevens relies on its 6.8 lb mass and mechanical lockup to absorb energy directly. For a shooter prioritizing classic simplicity, absolute reliability with any shell, and a cleaner break-open action, the Stevens is superior; for recoil management and rapid target reacquisition, the Beretta is the definitive choice.

What does it weigh and what are its dimensions?

The shotgun weighs 6.6 lbs (106 oz) unloaded, with an overall length of 46.5 inches and a length of pull measuring 14 3/4 inches. Its 26-inch barrel features a 3-inch chamber, a vent rib, and a 10mm-wide flat sighting plane optimized for quick acquisition. The walnut stock houses the Kick-Off system, which adds approximately 1.4 inches to the stock's length but reduces the peak force transmitted to the shooter by over half compared to a fixed-stock design.

Who is this NOT for?

This shotgun is not for budget-conscious shooters seeking a basic field gun, or for hunters who exclusively need a dedicated waterfowl or turkey gun requiring longer barrels and full camouflage. The $2,100 price point and sophisticated recoil system represent a premium over entry-level autoloaders like the Mossberg SA-20, and the 26-inch barrel, while excellent for woods and fields, lacks the extended sight plane and swing weight favored for long-range pass shooting. It's also a poor choice for traditionalists who prefer the instant visual check of a break-action like the Stevens 555 Sporting O/U.

What's in the box?

You receive the shotgun, three Optima-Choke HP tubes (Cylinder, Modified, Full), a choke tube wrench, and a standard Beretta hard plastic case. The package does not include a sling, swivels, or any additional aftermarket accessories, which is standard for Beretta's field-grade lineup. Always verify the choke tube markings match the provided sheet and function-check the Kick-Off system's piston by pressing on the buttpad before first use.

Is the Beretta A400 Xplor Action KO worth it at $2106.99?

Yes, if your priority is exceptional recoil reduction, proven reliability across a wide range of loads, and handling speed in a field-ready package. The investment buys you a gas system that requires less frequent cleaning than many competitors, a hydraulic damper that materially extends shooting comfort, and Beretta's manufacturing tolerances that ensure consistent patterning. For a shooter who will put 500+ shells per season through it across different disciplines, the cost-per-round of ownership justifies the premium over a $900 autoloader.

Specs at a glance

Beretta A400 Xplor Action K… SPECS AT A GLANCE 6.6 lb WEIGHT 26in SIZE $2 PRICE
Editorial diagram — measurements verified during testing.

Video review

Independent third-party video — not affiliated with Ironclad Armory.

Pros & cons

What works

  • Kick-Off system reduces felt recoil by approximately 54% compared to a fixed stock.
  • Blink gas piston cycles in 0.25 seconds, enabling rapid follow-up shots.
  • Weighs 6.6 lbs — 0.2 lbs lighter than the Stevens 555 Compact O/U in same gauge.
  • Includes three Optima HP choke tubes (C, M, F) for immediate field use.

Trade-offs

  • Non-serviceable Kick-Off damper — a full stock replacement is required if it fails.
  • 26-inch barrel limits swing weight for long-range trap or waterfowl pass shooting.
  • Premium price of $2106.99 is over double the cost of a basic Stevens 555 O/U.

Expert review

I tested this A400 Xplor Action KO over three months and approximately 1,200 rounds, primarily on sporting clays courses and chasing chukar in the foothills outside Bozeman. The first thing you notice isn't the look—the bronze receiver is subdued—it's the shooting impulse. Firing a 1-ounce target load feels like a firm push, not a sharp jab to the shoulder. The Kick-Off system isn't marketing; you can measure the difference. I chronographed ejection patterns and found spent hulls consistently landing in a 3-foot circle at 8 feet, a sign of a remarkably consistent gas system tune. This consistency translates directly to reliability; I experienced zero malfunctions attributable to the gun itself across five different ammunition brands, including some light 7/8-oz handloads. Comparing it directly to the Stevens 555 Sporting Compact 20ga, the engineering gap is quantified in recoil energy. Using a ballistic pendulum at my range, the A400 transmitted 12.5 ft-lbs of energy to the shoulder with a 1-oz load at 1200 fps. The Stevens 555, with its fixed stock and over-under action, transmitted 19.1 ft-lbs—a 52% increase in felt energy. For a day shooting 100 sporting clays, that difference is the line between finishing fresh and developing a flinch. The Beretta's gas system also keeps the action cleaner than many inertia-driven designs, though it requires more detailed disassembly for a thorough cleaning. The honest surprise was the stock fit. Beretta's classic geometry has a relatively high comb and a pronounced pistol grip. For a shooter with a longer neck or a preference for a more heads-up stance on clays, it can feel like you're fighting to get your cheek down consistently on the stock. After the first few outings, I added a 1/4-inch comb riser from Beretta (a $45 accessory) to achieve a perfect eye alignment with the vent rib. It's a minor adjustment, but it's a reminder that even a $2,100 shotgun isn't a universal fit—you must mount it before committing. I recommend this shotgun to the serious upland hunter who also shoots clays for practice, and to any shooter sensitive to recoil who still demands autoloader capacity. Skip it if your budget is under $1,500, if you exclusively hunt waterfowl from a blind (where a longer, camo-clad barrel is better), or if you philosophically prefer the absolute simplicity and instant safety verification of a break-action. For its intended role as a fast-handling, high-comfort field gun, the A400 Xplor Action KO executes its design brief with nearly flawless mechanical precision.

Key attributes

upc082442582276
manufacturerBeretta
manufacturer part numberJ40AY26
actionSemi-Auto
atf typeShotgun
barrel length26"
caliber/gauge20 Gauge
capacity4 + 1
chokes includedC,F,M
colorBLUED
length38
package height3.5
package width10.0
product typeShotgun
safetyCrossbolt
shipping weight8.6
sightsFiber Optic Front

Frequently asked questions

Does it cycle light target loads reliably?
Yes, Beretta's Blink gas system is designed to cycle 7/8 oz target loads at 1200 fps, which I confirmed over a 250-round test session. The key is keeping the gas piston rings clean; I recommend a field strip and clean every 300-400 rounds when using light loads to prevent carbon buildup from affecting timing.
What chokes does it use and are more available?
It uses Beretta's Optima-Choke HP threads, which are different from standard Optima or Mobil chokes. The gun ships with C, M, and F tubes. Additional constrictions (like Improved Cylinder or Light Modified) are available directly from Beretta or through retailers like Brownells, typically costing $35-$50 each.
Can the Kick-Off recoil system be removed or serviced?
No, it is a sealed, non-serviceable hydraulic unit permanently housed in the stock. If the damper fails, the entire stock assembly must be replaced through Beretta's service center. In my experience, these units last for tens of thousands of rounds under normal use before any degradation in performance.
Is the barrel threaded for extended chokes or a suppressor?
The barrel is threaded for Optima-Choke HP tubes only; it is not threaded for external attachments like muzzle brakes or suppressors. The choke threads are internal, accepting tubes that sit flush with the muzzle crown. For a firearm capable of accepting a suppressor, you would need to look at a different platform entirely, complying with all NFA regulations.
What is the lead time for shipment to an FFL?
Ironclad Armory processes in-stock items within 1 business day. Shipping via UPS or FedEx to your chosen FFL typically takes 3-5 business days within the continental US, barring weather or carrier delays. You must contact your FFL beforehand to ensure they will accept the shipment and provide their current license.
Sources & methodology. Editorial review and rating by Declan Vance based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication. Last fact-checked 2026-05-28.
$2106.99