Description
For the American waterfowler or upland hunter who demands consistent reliability in wet, muddy, or freezing conditions, the Beretta A400 XTR Plus KO 12ga 3.5 Max 7 KO 26in Plus offers a proven gas-operated platform. This shotgun is designed to handle heavy 3.5-inch magnum loads for geese and turkeys while cycling lighter 2.75-inch target loads without adjustment. Whether you’re working a flooded timber blind in Arkansas or chasing pheasants across a South Dakota field, this semi-auto provides the cycling consistency and recoil management that serious hunters rely on.
What This Product Is and Who It Is For
The Beretta A400 XTR Plus KO is a semi-automatic shotgun chambered in 12 gauge with a 3.5-inch chamber, a 26-inch barrel, and a synthetic stock. It is built for hunters who need a single shotgun that can handle everything from doves and pheasants to geese and turkeys. This model is not intended for home defense or concealed carry—it is a field gun optimized for waterfowl and upland hunting. Target shooters who want a soft-recoiling platform for clays will also find the A400 system suitable, though the 26-inch barrel and synthetic stock lean toward field use rather than competition.
Key Specification Breakdown
- Gauge: 12 Gauge
- Chamber: 3.5 inches (accepts 2.75, 3, and 3.5-inch shells)
- Barrel Length: 26 inches
- Overall Length: Approximately 49.5 inches
- Weight: Approximately 7.2 pounds
- Stock: Synthetic with Recoil Reduction System (KO – Kick-Off)
- Finish: Matte black receiver and barrel with synthetic stock
- Sights: Red bar front sight (fiber optic)
- Chokes: Beretta Mobilchoke system (includes flush-mounted chokes: IC, M, F)
- Capacity: 4+1 (3.5-inch shells) or 5+1 (2.75-inch shells) with included plug
- Action: Gas-operated with self-cleaning piston (Blink system)
- Recoil Pad: Micro-Core recoil pad with Kick-Off hydraulic damper
- Length of Pull: 14.5 inches (with included spacers for adjustment)
- Drop at Comb: 1.5 inches
- Drop at Heel: 2.25 inches
Feature Deep-Dive
The A400 XTR Plus KO uses Beretta’s Blink gas operating system, which cycles at a rate of 36% faster than previous A400 models. This is not a marketing claim—the system uses a larger, self-cleaning piston that reduces fouling buildup and maintains cycling speed even with heavy loads. For the hunter who fires a quick follow-up shot at a flushing pheasant or a goose crossing the decoys, this faster cycle time provides a tangible advantage. The self-cleaning piston also means you can shoot longer between cleanings, which matters when you are spending multiple days in the field without access to a workbench.
Kick-Off (KO) is Beretta’s recoil reduction system built into the stock. It uses a hydraulic damper and a sliding buttpad to reduce felt recoil by up to 40%. On a 3.5-inch 12 gauge, this makes a noticeable difference. A typical 3.5-inch magnum load generates around 40-45 foot-pounds of recoil energy. With the KO system, that felt recoil drops closer to what a standard 3-inch load produces. For hunters who shoot several boxes of heavy loads in a day—during a goose hunt or a turkey scouting trip—this reduces fatigue and flinching. The Micro-Core recoil pad also helps grip the shoulder, even with wet or bulky clothing.
The 26-inch barrel is a practical length for both waterfowl and upland hunting. It is short enough to swing quickly in thick cover or a boat blind, yet long enough to maintain a smooth swing for crossing shots. The barrel is cold-hammer-forged for consistent wall thickness and durability. The bore is chrome-lined for corrosion resistance, which is important when the gun is exposed to saltwater, marsh mud, or rain. The red bar front sight (fiber optic) is visible in low-light conditions—dawn and dusk when waterfowl are most active—and is protected by a metal hood to prevent damage.
The synthetic stock is reinforced with fiberglass and is designed to resist warping from moisture or temperature changes. It includes a shim system that allows you to adjust drop and cast without a gunsmith. This means you can fine-tune the fit to your body type or hunting coat thickness. The stock also has a textured grip area on the forend and pistol grip for positive handling with wet or gloved hands. The trigger guard is oversized to accommodate gloves, and the bolt release button is positioned for easy access without breaking your grip on the gun.
The Mobilchoke system included with this model provides three flush-mounted chokes: Improved Cylinder, Modified, and Full. These cover the most common hunting scenarios. Improved Cylinder works well for close-range upland birds and decoying ducks. Modified is a general-purpose choke for pass shooting and pheasants. Full is suited for long-range geese and turkeys with 3.5-inch loads. The chokes are steel-shot rated, which is required for waterfowl hunting on public lands. The barrel is also threaded for the full range of Beretta Mobilchoke aftermarket options, including extended and ported chokes.
The A400 XTR Plus includes Beretta’s “Micro-Core” recoil pad, which uses a viscoelastic material to absorb high-frequency vibrations. Combined with the KO hydraulic damper, the system reduces both the sharp impact of recoil and the muzzle rise. This allows for faster follow-up shots because the gun returns to the target plane more quickly. The gun also features a reversible safety button for left-handed shooters, and the bolt release is ambidextrous. The loading port is beveled for easier shell insertion, and the magazine cutoff allows you to unload the chamber while keeping the magazine full—useful when crossing fences or entering a vehicle.
Ideal Use Cases
- Waterfowl Hunting: The 3.5-inch chamber and corrosion-resistant finish make this a primary choice for duck and goose hunting in wet environments. The KO system helps manage heavy magnum loads.
- Upland Hunting: The 26-inch barrel and light weight (7.2 lbs) are suitable for walking fields for pheasants, quail, or chukar. The Blink system cycles light target loads reliably, so you can practice with the same gun.
- Turkey Hunting: With a Full choke and 3.5-inch turkey loads, this gun delivers dense patterns at 40-50 yards. The synthetic stock handles camouflage wraps or dip without issue.
- Target Practice: The recoil reduction and self-cleaning piston make it a comfortable gun for shooting 100+ rounds of clay targets in a session. The 26-inch barrel is not ideal for trap, but works for sporting clays and skeet.
Compatibility Notes
- Ammunition: Accepts 2.75, 3, and 3.5-inch 12-gauge shells. Steel shot, lead shot, and bismuth are all safe. Do not use steel shot in non-steel-rated chokes—use the included Mobilchoke set which is steel-rated.
- Chokes: Uses Beretta Mobilchoke pattern (flush or extended). Aftermarket options from Beretta, Carlson’s, and Briley are compatible.
- Holsters & Cases: Not applicable for holsters. Use a soft or hard case designed for 48-50 inch overall length shotguns.
- Magazines: No detachable magazine. Internal tubular magazine capacity is 4+1 with 3.5-inch shells, 5+1 with 2.75-inch shells. A plug is included to reduce capacity to 2+1 for migratory bird regulations.
- Accessories: The receiver is drilled and tapped for Beretta scope mounts if you wish to add a red dot for turkey hunting. The stock accepts standard Beretta shim kits and recoil pad replacements.
Frequently Asked Questions
1. How does shipping to a U.S. address work for this shotgun?
We ship to FFL dealers in all 50 states where the firearm is legal. After you place the order, we will need your chosen FFL dealer’s contact information and a copy of their license. We do not ship to residential addresses. Standard shipping via UPS or FedEx is included in the price. Typical transit time is 3-7 business days.
2. What is the FFL transfer process for this Beretta A400?
Once we receive your order, we contact your FFL dealer to confirm they will accept the transfer. Your dealer will then run a background check (NICS) when you go to pick up the firearm. You pay the dealer’s transfer fee (usually $20-$50) at that time. We do not charge any additional fees for the transfer. You must be 18 or older for shotgun purchase from a licensed dealer, and 21 or older from a handgun dealer (some state restrictions apply).
3. Can this shotgun shoot 2.75-inch target loads without jamming?
Yes. The Beretta Blink gas system is designed to cycle a wide range of loads without adjustment. It will reliably cycle 2.75-inch target loads (typically 1-1/8 oz at 1145 fps) as well as 3.5-inch magnum loads. There is no gas regulator to switch. The self-cleaning piston maintains consistent cycling pressure across different shell lengths and payloads.
4. What warranty does Beretta provide on the A400 XTR Plus KO?
Beretta offers a limited lifetime warranty to the original owner for defects in materials or workmanship. This covers the receiver, barrel, and stock. Wear items like springs, recoil pads, and chokes are not covered. To file a claim, you contact Beretta customer service directly with proof of purchase. We also offer a 30-day return policy for unused, unfired firearms in original packaging—see our return policy page for details.
5. Can I return this shotgun if I don’t like it?
Unfired, unmodified firearms in original packaging can be returned within 30 days of delivery. You must contact us for a return authorization number. The buyer pays return shipping and insurance. Once the firearm is received and inspected, we process




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