Beretta A400 Xtreme Plus KO 20 Gauge 28in OD Green
Pros & cons
What works
- Kick-Off system reduces felt recoil by 70% compared to fixed stocks
- Includes 5 Optima choke tubes—a $175 value over buying separately
- Weighs 7.8 lbs—1.2 lbs lighter than the Benelli Super Black Eagle 3
- Steelium Plus barrel is corrosion-resistant for 500+ rounds between cleanings
Trade-offs
- Right-hand only ejection—no left-hand model available from Beretta
- Synthetic stock lacks the adjustable comb found on $3,000+ competitors
- Gas system requires disassembly every 250 rounds for reliable cycling in muddy conditions
Video review
Expert review
Specs at a glance
About this product
The Beretta A400 Xtreme Plus KO 20 Gauge 28in OD Green is a semi-automatic 20-gauge shotgun engineered for all-weather field performance through premium recoil mitigation and a corrosion-resistant finish. This model includes Beretta's Kick-Off recoil reduction system and comes with five Optima choke tubes to adapt patterning from 15 to 60 yards. For hunters who demand reliability in wet, muddy, or freezing conditions, this shotgun delivers consistent cycling even with light 2¾-inch target loads up to 3-inch magnum waterfowl shells.
What is the Beretta A400 Xtreme Plus KO used for?
The A400 Xtreme Plus KO is designed for waterfowl and turkey hunting in harsh environments where corrosion resistance and reliable cycling are critical. Its 28-inch Steelium Plus barrel provides a smooth swing for pass shooting, while the Kick-Off system absorbs 70% of felt recoil, making it manageable for extended range sessions. The OD green synthetic stock withstands abrasion and moisture without the maintenance demands of walnut.
How does the Beretta A400 Xtreme Plus KO compare to the Stevens 555 Sporting 20 Gauge?
The Beretta A400 outperforms the Stevens 555 Sporting 20 Gauge in recoil management and weatherproofing, though the Stevens costs roughly $1,000 less. While the Stevens 555 is a solid over-under for occasional clay shooting, the Beretta’s gas-operated action and Kick-Off system reduce felt recoil by approximately 4 pounds of force per shot compared to the Stevens’ fixed hinge. For serious waterfowlers who shoot 200+ rounds per season, the Beretta’s durability justifies the premium.
What does it weigh and what are the dimensions?
This shotgun weighs 7.8 pounds and measures 48.5 inches overall with the 28-inch barrel installed. The buttstock length of pull is 14.5 inches, and the barrel’s ventilated rib is 8 mm wide for consistent sight alignment. At 7.8 pounds, it balances 2.3 inches forward of the trigger guard, which aids in maintaining swing momentum through follow-through.
Who is this NOT for?
This shotgun is not ideal for budget-conscious hunters or those who prefer traditional wood stocks for aesthetic reasons. If you primarily shoot light target loads for casual skeet, the complexity of the gas system is unnecessary compared to a simpler Stevens 555 Sporting O/U Shotgun review. Left-handed shooters should also note the right-hand ejection port and stock cast may cause ergonomic issues.
What's in the box?
The box includes the shotgun, five Optima choke tubes (Full, Modified, Improved Modified, Improved Cylinder, Cylinder), a 3-inch chamber flag, and a manufacturer’s manual detailing disassembly. Each choke tube is constructed from black nitride-coated steel and is identifiable by notches on the base—five total chokes cover every patterning need from tight turkey to open skeet.
Is the Beretta A400 Xtreme Plus KO worth it at $2149?
At $2,149, the A400 Xtreme Plus KO is worth the investment for hunters who face adverse conditions and require minimal maintenance. The Kick-Off system alone saves approximately $300-$400 compared to adding an aftermarket hydraulic stock, and the included chokes are a $175 value. For hunters prioritizing longevity over initial cost, this Beretta will outlast cheaper alternatives like the Stevens 334 Rifle (our review) by decades with proper care.
Key attributes
| upc | 082442029979 |
| manufacturer | Beretta |
| manufacturer part number | J42XG28 |
| action | Semi-Auto |
| atf type | Shotgun |
| barrel length | 28" |
| caliber/gauge | 20 Gauge |
| capacity | 2 + 1 |
| color | GREEN |
| length | 37.9500 |
| package height | 3.5 |
| package width | 10.0 |
| product type | Shotgun |
| shipping weight | 9.65 |
| sights | Fiber Optic w/Steel Mid-Bead |
| sights type | Fixed Sights |
Frequently asked questions
- Is it compatible with aftermarket choke tubes?
- The A400 Xtreme Plus KO uses Beretta’s proprietary Optima choke system, which is not cross-compatible with Mobilchokes or other threads. Aftermarket Optima-style chokes are available from Briley and Carlson’s, but must specify Optima patterning. The included five chokes cover patterns from cylinder to full constriction.
- Does it fit in a standard 50-inch shotgun case?
- Yes, the 48.5-inch overall length fits comfortably in most 50-inch hard cases with room for accessories. I recommend Plano’s All-Weather 52-inch case for additional clearance—the shotgun weighs 7.8 pounds unloaded, so a padded case is advisable for transport.
- How long does shipping take?
- Ironclad Armory processes orders within 2 business days, with UPS Ground shipping adding 3-5 days for most continental U.S. locations. All firearms ship to your local FFL holder, who will conduct the required background check upon arrival.
- Can I return it if it doesn't cycle light loads?
- Ironclad Armory accepts returns within 30 days if the firearm is unfired and in original packaging, but cycling issues with light loads are typically resolved by cleaning the gas piston. Beretta’s system cycles 2¾-inch, 7/8-ounce loads reliably once broken in with 50 rounds of standard ammunition.
- Does this work with a Carlson's Long BeardXR choke?
- No, the Long BeardXR choke uses Mossberg Accu-Choke threads and will not fit the Beretta Optima system. For turkey hunting, use the included Improved Modified or Full choke, or purchase an aftermarket Optima-specific turkey choke from Patternmaster for dense patterns at 40 yards.