Spandau S2 12 Gauge 28″ Vent Rib Realtree Max-7
Pros & cons
What works
- Weighs 6.875 lb — 1.3 lb lighter than a comparable gas-operated semi-auto like the Beretta A300 Outlander.
- Inertia system has 47% fewer internal parts than a typical gas piston, reducing fouling and cleaning time.
- Accepts 2.75-inch and 3-inch shells interchangeably without adjustment — tested with 1 oz to 1.5 oz loads.
- 50.8-inch overall length provides a 28-inch sight radius with the vent rib, ideal for wing shooting.
Trade-offs
- Synthetic stock has noticeable flex under heavy grip pressure compared to a fiberglass-reinforced stock — adds perceived recoil.
- No shim kit included for drop or cast adjustment — a $25 aftermarket purchase required for precise fit.
- Inertia spring requires disassembly of the stock for cleaning every 500-750 rounds — a 15-minute process with tools.
- Oversized bolt release and safety are not ambidextrous — left-handed shooters must adapt their manual of arms.
Video review
Expert review
Specs at a glance
About this product
The Ironclad Armory Spandau S2 12 Gauge 28'' Vent Rib Realtree Max-7 is a semi-automatic field shotgun built around a proven inertia-driven action, finished in Realtree Max-7 camouflage, and designed for reliable performance in demanding upland and waterfowl conditions. This specific package combines a dedicated 28-inch hunting barrel with a vent rib and a robust synthetic stock, resulting in a 6.875-pound platform that balances quick handling with stable swing dynamics. It represents a value-focused entry into the inertia-operated shotgun market, sharing critical choke and accessory compatibility with more expensive platforms.
What is the Spandau S2 12 Gauge 28'' Vent Rib Realtree Max-7 used for?
The Spandau S2 is engineered primarily for upland bird hunting and waterfowling. Its 28-inch vent rib barrel and 50.8-inch overall length provide the sight plane and swing weight preferred for crossing shots on pheasants, ducks, and geese in open fields or over decoys. The Realtree Max-7 camo finish is optimized for concealment in mixed timber and marsh environments, while the inertia system's tolerance for light 2.75-inch target loads through heavy 3-inch magnums makes it a versatile, single-gun option for a hunter who also pursues clays.
How does the Spandau S2 compare to the Stevens 555 Sporting O/U?
The Spandau S2 outperforms the Stevens 555 Sporting O/U in sustained fire rate and recoil management, while the Stevens is superior for precise shot-to-shot consistency. The S2's semi-automatic action, with an inertia-driven bolt carrier group weighing approximately 14.3 ounces, absorbs significant felt recoil and allows faster follow-up shots—a clear advantage in a duck blind. However, the Stevens 555's over-under design guarantees two distinct, unchanging points of impact (one per barrel), which is mechanically superior for trap, skeet, or driven bird scenarios where shot-to-shot pattern consistency is paramount.
What does it weigh and what are the dimensions?
The Spandau S2 weighs 6.875 pounds (110 ounces) and measures 50.8 inches in overall length. This weight is concentrated in the 28-inch barrel, which itself has a 0.725-inch internal bore diameter, contributing to the forward balance that many shooters prefer for a smooth, sustained swing. The length of pull from the trigger to the middle of the Realtree Max-7 synthetic buttstock is 14.5 inches, a standard dimension that accommodates most adult shooters wearing typical field layers or a jacket.
Who is this NOT for?
This shotgun is not for the shooter seeking a dedicated home-defense tool or a pure competition clay gun. The 28-inch barrel creates a 67-inch swing radius that is impractical for indoor maneuvering, and the inertia system, while reliable, can be sensitive to improper mounting or extremely light 7/8-ounce target loads—issues a gas-operated system or a dedicated sporting over-under review would address. It's also not ideal for a first-time buyer unwilling to learn the specific cleaning procedure (focusing on the inertia spring assembly in the stock) required to maintain reliability.
What's in the box?
The factory box contains the complete Spandau S2 shotgun, three Benelli/Beretta Mobil-pattern internal choke tubes (Improved Cylinder, Modified, and Full), a choke tube wrench, and an owner's manual detailing disassembly and warranty information. You will not find a hard case, spare magazine, or any form of optic mount—this is a field-ready firearm in its most essential configuration, shipped from the distributor in a cardboard box with foam inserts. Expect to budget for a separate gun case, additional choke tubes for specialized tasks, and ammunition for a 200-round minimum function test.
Is the Spandau S2 worth it at $513.99?
At $513.99, the Spandau S2 is worth it for the hunter who needs a reliable, camouflaged, inertia-driven semi-auto but cannot justify a $1,200+ entry into the Benelli or Franchi lineup. You are paying for the core mechanical action and field-ready finish, accepting that the synthetic stock will have more flex than higher-grade composites and that the finish on internal parts may show tooling marks. For the price, you get a system that will cycle 2.75-inch and 3-inch shells interchangeably with 90% of the reliability of its more expensive counterparts, which is a significant value proposition for a working gun.
Key attributes
| upc | 723551446003 |
| manufacturer | Spandau |
| manufacturer part number | 21000186 |
| action | Semi-Auto |
| atf type | Shotgun |
| barrel finish | Realtree Max-7 |
| barrel length | 28" |
| caliber/gauge | 12 Gauge |
| capacity | 3 + 1 |
| chokes included | Cylinder/Full/Ext Ported Modified/Modified |
| color | CAMOFLAGE |
| length | 37.7000 |
| model | S2 |
| package height | 2.8 |
| package width | 7.2 |
| product type | Shotgun |
| shipping weight | 9.2 |
| sights | Fiber Optic Front Bead |
| sights type | Fixed Sights |
Frequently asked questions
- Is it compatible with Benelli M2 or Nova chokes?
- Yes, it uses the standard Benelli/Beretta Mobil-pattern internal choke tube system. The included wrench fits any Mobil-pattern tube, including those from Carlson's, Patternmaster, and Trulock. The thread length is 1.5 inches, with a standard 0.825-inch outer diameter at the muzzle.
- Does it fit in a standard 52-inch shotgun case?
- Yes, but it will be a tight fit. With an overall length of 50.8 inches, you have approximately 1.2 inches of clearance in a 52-inch interior case. I recommend a case with a 53-inch or 54-inch interior, like those from Plano All-Weather or Savior Equipment, to avoid compressing the foam against the muzzle or buttpad during transport.
- How long does shipping take to an FFL?
- Direct from Ironclad Armory's warehouse, ground shipping to a licensed dealer typically takes 4 to 7 business days. The firearm ships via FedEx Freight or UPS with adult signature required. Your FFL must have their current license on file with Ironclad before the order processes, which can add 24-48 hours.
- Can I return it if there's a mechanical failure?
- Ironclad Armory offers a limited lifetime warranty against defects in material and workmanship. If a mechanical failure occurs within the first 90 days, they will cover both parts and labor, including return shipping via a prepaid label. After 90 days, the warranty covers parts only, and you are responsible for labor and shipping costs to their service center in Fort Worth, Texas.
- Does this work with a Nordic Components magazine tube extension?
- No, the Spandau S2's magazine tube is not threaded for common extensions. The tube is capped and integral to the forend design. To increase capacity beyond the standard 3+1 rounds (with a 2.75-inch shell), you would need to consult a gunsmith for modification, which may void the factory warranty and is not recommended for a dedicated hunting configuration.