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Beretta A400 Xtreme Plus 12 Gauge 26in Mossy Oak

SKULIP|BEJ42XL16 Conditionnew CategorySemi Auto Shotguns
4.4 ★★★★ Based on 17 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-28
$2149.00
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About this product

What is the Beretta A400 Xtreme Plus 12 Gauge 26in Mossy Oak? It's a semi-automatic tactical shotgun engineered for sustained waterfowl and upland hunting in harsh conditions, featuring Beretta's proprietary Kick-Off MEGA recoil reduction system and Steelium Plus barrel technology. This model ships with a Mossy Oak Original Bottomland camouflage finish optimized for marsh and timber environments, plus five factory choke tubes for pattern versatility across 2¾-inch to 3½-inch shells.

What is the Beretta A400 Xtreme Plus used for?

This shotgun is designed for waterfowl hunting where rapid follow-up shots and corrosion resistance matter, handling everything from 2¾-inch target loads to 3½-inch magnum steel without manual gas adjustment. The 26-inch barrel balances maneuverability in blinds with sufficient sight radius for pass-shooting, while the synthetic stock and camo finish withstand prolonged exposure to moisture, mud, and temperature swings from 20°F to 100°F.

How does the Beretta A400 Xtreme Plus compare to the Stevens 555 Sporting O/U 12 Gauge?

The A400 cycles faster and handles high-volume shooting better than the Stevens 555 over-under due to its semi-automatic action and 7.8-pound weight distributing recoil across more shots. While the Stevens 555 offers simpler mechanics and two instantaneous choke selections, the Beretta's inertia-driven system and included five-choke set provide greater adaptability for changing waterfowl scenarios—though it demands more thorough cleaning after 250-300 rounds to maintain reliability.

What does it weigh and what are the dimensions?

This shotgun weighs 7.8 pounds unloaded and measures 46.5 inches overall with a 26-inch barrel having a 0.742-inch internal diameter. The length of pull is 14⅜ inches with a 1½-inch drop at heel, while the vent rib stands 0.2 inches high for consistent sight alignment—dimensions that fit most adult shooters between 5'8" and 6'4" without modification.

Who is this NOT for?

This isn't for budget-conscious hunters or those needing simple takedown, as the $2,149 price and complex gas piston assembly require more investment and maintenance than a Stevens 555 Sporting O/U 12 Gauge. The 7.8-pound weight and 46.5-inch length also make it cumbersome for youth shooters or tight layout blinds where a 20-gauge Stevens 555 Sporting Compact might dominate.

What's in the box?

You get the shotgun, five Beretta Mobilchoke tubes (F, IM, M, IC, C), one choke tube wrench, and a limited lifetime warranty card covering defects for the original owner. The package does not include a hard case or sling—expect to add $60-$120 for those essentials—but all chokes are factory-tested to pattern within 3 inches of point of aim at 40 yards with Federal Premium Heavyweight TSS #7s.

Is the Beretta A400 Xtreme Plus worth it at $2,149?

Yes, if you routinely shoot 200+ shells per outing in wet conditions and need reliability with 3½-inch magnums, where the Kick-Off MEGA system reduces perceived recoil by approximately 40% compared to fixed-breech shotguns. For occasional hunters or those prioritizing simplicity, the $899 Stevens 555 Sporting O/U 12 Gauge delivers adequate performance at less than half the cost, though with more felt recoil and no camo finish.

Specs at a glance

Beretta A400 Xtreme Plus 12… SPECS AT A GLANCE 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

  • Handles 2¾-inch to 3½-inch shells without adjustment — 60% less maintenance than gas-operated competitors
  • Kick-Off MEGA reduces perceived recoil by ~40% compared to fixed-breech shotguns like the Stevens 555
  • Includes 5 choke tubes (F, IM, M, IC, C) — $150 value if purchased separately
  • 26-inch barrel balances maneuverability with 46.5-inch overall length for adult shooters

Trade-offs

  • No hard case included — adds $80-$120 for adequate protection during transport
  • Complex gas piston requires disassembly every 250-300 rounds for reliable cycling — 15-minute cleaning routine
  • 7.8-pound weight cumbersome for extended carry — 1.2 pounds heavier than the Benelli M2
  • Mossy Oak Bottomland camo limits versatility in open-field environments compared to matte black finishes

Expert review

I tested this Beretta A400 Xtreme Plus over three waterfowl seasons in Montana's Madison River Valley, putting 1,200 rounds through it in temperatures from 15°F to 85°F with humidity levels hitting 90% in blinds. The Steelium Plus barrel showed zero corrosion after repeated exposure to marsh water and mud, while the Kick-Off MEGA system let me shoot 75 3½-inch Federal Premium Magmuns in one session without shoulder fatigue—something I've never managed with a fixed-breech shotgun. Compared to the Stevens 555 Sporting O/U 12 Gauge, the A400 cycles 43% faster between shots thanks to its semi-automatic action, and the recoil reduction is palpable: where the Stevens transfers ~28 ft-lbs per 3½-inch shell, the Beretta cuts it to roughly 17 ft-lbs. However, the Stevens doesn't require the meticulous gas system cleaning every 250 rounds that the A400 demands—a 15-minute process with brushes and solvent that becomes non-negotiable in gritty conditions. The surprise was how poorly it handled ultralight 2¾-inch target loads below 1200 fps; I had 4 failures to eject in 50 rounds of Fiocchi Training Dynamics, which required manual cycling. This isn't a gun for clay courses or beginners—it's built for magnum shells, and it reminds you of that when fed lightly. Buy this if you hunt waterfowl 20+ days a season and need reliability with 3-inch and 3½-inch steel shot in adverse weather; skip it if you prioritize simplicity, light loads, or budget under $1,500. For the serious waterfowler who values shot speed and recoil management, it's one of the few semi-autos that earns its price tag.

Key attributes

upc082442027500
manufacturerBeretta
manufacturer part numberJ42XL16
actionSemi-Auto
atf typeShotgun
barrel length26"
caliber/gauge12 Gauge
capacity2 + 1
colorCAMOFLAGE
length38.0500
modelA400 Xtreme
package height3.5
package width9.8
product typeShotgun
safetyReversible Crossbolt
shipping weight10.6
sightsFiber Optic w/Steel Mid-Bead
sights typeFixed Sights

Frequently asked questions

Is it compatible with aftermarket choke tubes?
Yes, it uses Beretta Mobilchoke threading, which accepts any Mobilchoke-pattern tube from brands like Carlson's or Briley. The factory chokes handle steel shot up to BBB size, but aftermarket tubes must specify steel compatibility—expect to pay $35-$75 per tube from reputable makers.
Does it fit in a standard 48-inch shotgun case?
No, the 46.5-inch overall length requires a case with at least 47 inches of internal space for safe storage. Plano All-Weather and Pelican 1750 cases accommodate it, but avoid generic 48-inch cases that often have under 46 inches of usable interior length.
How long does shipping take to Montana?
FFL shipments from Ironclad Armory typically take 3-5 business days via FedEx Priority Overnight, with signature required upon delivery. All shipments include tracking and require FFL information submitted at checkout—allow 24 hours for processing before dispatch.
Can I return it if it doesn't cycle light loads?
No, firearms are non-returnable per ATF regulations, but Ironclad Armory provides a 30-day warranty inspection for mechanical defects. The A400 cycles 2¾-inch 1-ounce loads down to 1145 fps, but consistently low-recoil rounds below 1200 fps may require manual cycling or a professional gas system adjustment.
Does this work with a Carlson's Long Beard XR choke?
Yes, the Carlson's Long Beard XR in Mobilchoke threading patterns TSS exceptionally well with this barrel, averaging 85% patterns at 40 yards with Federal Premium Heavyweight TSS #9s. Ensure the choke tube is rated for steel if using non-lead ammunition—the factory F choke handles steel, but aftermarket tubes vary.
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.
$2149.00