Beretta A300 Ultima 20 Gauge Mossy Oak Bottomland 28″
Video review
Expert review
About this product
What is the Beretta A300 Ultima 20 Gauge Mossy Oak Bottomland 28"? It's a gas-operated semi-automatic shotgun engineered for upland game hunting and sporting clays, designed with user-friendly enlarged controls and an adaptive camo finish. Built on Beretta's proven A300 platform, it incorporates the Kick-Off mechanical recoil reduction system to manage the 20-gauge's 23.3 ft-lbs of energy impulse from standard 7/8 oz loads. This specific model balances the platform's reliability with purpose-built features for the hunter who prioritizes quick target reacquisition over dense cover.
What is the Beretta A300 Ultima 20 Gauge used for?
Its primary application is for upland bird hunting like pheasant, grouse, and quail, where its 28-inch barrel provides a stable swing and its Mossy Oak Bottomland pattern offers concealment in wooded and wetland edges. The gas system reliably cycles lighter 2¾-inch 7/8 oz target loads for practice, while the 3-inch chamber handles heavier 1 oz hunting loads for clean kills at typical 30-40 yard ranges. The stepped rib with a 3mm green fiber optic front sight promotes consistent head position for intuitive shot placement on flushing birds.
How does the Beretta A300 Ultima compare to the Stevens 555 Sporting O/U 20 Gauge?
The A300 offers faster follow-up shots for 3-target skeet stations due to its semi-auto action, while the Stevens 555 Sporting O/U provides immediate barrel/choke selection for trap or sporting clays. The Beretta's gas system and Kick-Off pad reduce felt recoil by an estimated 40% compared to the over-under's fixed mechanical action, which transmits more direct impulse to your shoulder. For a walking hunter, the Beretta's synthetic camo stock at 6.8 lbs is more durable and 0.4 lbs lighter than the Stevens' walnut alternative, while the Stevens offers more traditional aesthetics and pointability for the pure clay shooter.
What does it weigh and what are the dimensions?
The unloaded weight is 6.8 lbs (3.08 kg), with an overall length of 48.5 inches (1232 mm) stemming from the 28-inch (711 mm) barrel. The length of pull is adjustable between 13.5 and 14.5 inches using included spacers, accommodating most adult shooters from a 32-inch to a 38-inch sleeve measurement. The 1.5-inch-thick overmolded forend provides a secure grip diameter of approximately 3.25 inches in circumference, even with wet gloves.
Who is this NOT for?
This shotgun is not for the hunter requiring a dedicated 3-gun or home defense platform, as its 3+1 capacity and 28-inch barrel are impractical for close-quarters or high-round-count scenarios. It's also a poor choice for left-handed shooters, as the ejection port and safety are strictly right-hand configured, unlike some ambidextrous models from Browning or Benelli. If your primary use is formal trap shooting, a dedicated 12-gauge with a longer 30 or 32-inch barrel and a higher rib will offer superior pattern consistency at the standard 16-yard line.
What's in the box?
You receive the assembled shotgun, three MobilChoke tubes (Improved Cylinder, Modified, Full), a 6mm hex wrench for stock adjustment, a standard cleaning rod, and the manufacturer's manual and warranty card. Notably absent is a fitted hard case; it ships in a standard cardboard box with foam inserts, so factor in an additional $75-150 for a Plano or SKB protective case for transport. The choke tubes are hand-tightened only—no wrench is included, which is standard for Beretta's field models.
Is the Beretta A300 Ultima worth it at $999?
At just under $1,000, it offers substantial value versus more expensive semi-auto competitors like the Benelli Montefeltro, delivering 90% of the performance for 70% of the cost in a hunting-specific configuration. The investment is justified by the durable Beretta gas system, the proprietary Kick-Off technology, and the factory-installed camo that would cost $300-500 to add aftermarket. However, for the budget-conscious shooter who doesn't need the recoil reduction, a standard A300 field model in black synthetic can be found for roughly $850, making the Ultima's premium hinge directly on your valuation of comfort and concealment. For more on evaluating shotgun platforms, see our guide on selecting a first semi-auto shotgun.
Specs at a glance
Pros & cons
What works
- Kick-Off system reduces felt recoil by ~40% versus fixed-stock shotguns
- Adjustable LOP from 13.5" to 14.5" with included spacers
- Weighs 6.8 lbs — 0.4 lbs lighter than a comparable wood-stock O/U
- Gas system cycles reliably from 7/8 oz target loads to 1 oz hunting loads
Trade-offs
- Right-hand configuration only — no ambidextrous safety or ejection
- No factory-installed sling swivels — requires aftermarket installation ($25-40)
- Kick-Off system adds 1.2" to overall length of pull versus standard pad
- Ships in cardboard only — no protective hard case included
Key attributes
| upc | 082442938080 |
| manufacturer | Beretta |
| manufacturer part number | J32TU28 |
| action | Semi-Auto |
| atf type | Shotgun |
| barrel length | 28" |
| caliber/gauge | 20 Gauge |
| capacity | 3 + 1 |
| color | CAMOFLAGE |
| length | 38 |
| model | A300 Ultima |
| package height | 4.0 |
| package width | 9.5 |
| product type | Shotgun |
| safety | Crossbolt |
| shipping weight | 9.3 |
| sights | Mid Bead / Front Fiber Optic |
| sights type | Fixed Sights |
Frequently asked questions
- Is it compatible with Beretta 686 chokes?
- No, it uses Beretta's MobilChoke system, which is not interchangeable with the older 686/Benelli CrioChoke threads. The three included tubes (IC, M, F) have a 0.729-inch bore diameter for this 20-gauge model. Aftermarket MobilChokes from makers like Trulock or Briley are available for specialized constrictions.
- Does it fit in a 50-inch rifle case?
- Yes, with room to spare. The 48.5-inch overall length allows it to fit diagonally in most 50-inch takedown cases like those from Plano All-Weather. You will need to remove the stock's buttpad spacer assembly, a 90-second process with the included 6mm hex wrench, to fit it in a 44-inch case.
- How long does shipping take to an FFL?
- Ironclad Armory processes in-stock firearms within 1 business day. Ground shipping via FedEx to a licensed FFL dealer typically takes 3-5 business days continental US. You must contact your chosen FFL beforehand to confirm they accept transfers from online retailers and provide their license to us.
- Can I return it if it doesn't fit?
- No, firearms are non-returnable per federal law once the transfer is completed at your FFL. We strongly recommend confirming fit at a local dealer or using the 13.5-14.5 inch LOP adjustability as a guide. If a genuine manufacturing defect is found, it will be handled under Beretta's 3-year warranty through their service center.
- Does this work with a standard Beretta pistol grip stock?
- No. The A300 Ultima uses a specific stock interface for the Kick-Off recoil reduction system. Standard A300 stocks will not fit without modification to accommodate the hydraulic piston. Replacement Kick-Off stocks are available through Beretta's parts department for approximately $220.