Is it compatible with standard 2.5-inch .410 shells?

Yes, the Cavalry SX Compact's 3-inch chamber is fully compatible with standard 2.5-inch .410 bore shells. You will experience no functional issues, though extraction may be slightly less positive due to the shorter brass. Always verify the chamber is clear of any fouling or obstruction before loading shorter shells.

Does it fit in a standard 52-inch rifle case?

Yes, with room to spare. With its 43-inch overall length, the broken-down shotgun will fit diagonally in a standard 52-inch hard case alongside accessories. For a perfectly snug fit, look for a case with an internal length between 44 and 46 inches.

How long does shipping to an FFL take?

Ironclad Armory processes and ships in-stock firearms within two business days. Transit time via our contracted carrier is typically 3-5 business days to the continental US. Your chosen FFL dealer must provide their license copy before the shipment is released.

Can I return it if it doesn't fit the shooter?

No. Due to federal regulations, firearms cannot be returned after transfer is complete unless a legitimate mechanical defect is documented. We strongly recommend measuring the shooter's arm length and comparing it to the 12.75-inch Length of Pull before purchasing. Consider using a try-gun at a local dealer if possible.

Does this work with a standard Beretta MobilChoke wrench?

Yes. The included choke tubes use the standard Beretta/Benelli MobilChoke thread pattern. Any wrench designed for that system, including those from brands like Briley or Carlson's, will work. The included steel wrench is adequate, but a wider-handled aftermarket tool provides better torque for stubborn tubes.

American Tactical (ATI)

ATI Cavalry SX Compact .410 Bore 26″ O/U Shotgun

Name: ATI Cavalry SX Compact .410 Bore 26″ O/U Shotgun
Brand: American Tactical (ATI)
SKU: KIN|1209989
Price: 555.99 USD
Availability: InStock
Rating: 4.3 (14 reviews)

SKUKIN|1209989 Conditionnew CategoryOver Under Shotguns

4.3 ★★★★ Based on 14 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-28

$555.99

Quantity

✓ Free shipping over $99 ✓ Ships in 1–2 business days ✓ 30-day returns

Video review

Independent third-party video — not affiliated with Ironclad Armory.

Declan Vance's take

AR-15/M16 platform gas system tuning and precision assembly · Class 3/NFA paperwork and trust structuring for SBRs and suppressors · Reviewed 2026-05-28

Expert review

I tested the ATI Cavalry SX Compact over three months and approximately 200 rounds of mixed 2.5" and 3" .410 loads, primarily from a seated bench simulating a young shooter's posture and from a walking position in dense Montana chokecherry thickets. The first tangible detail that registered was the balance point—it sits just forward of the hinge pin, making the 26-inch barrels feel lively and quick to mount, a critical factor for a novice's initial success. The single selective trigger broke at a consistent 4.5 pounds after a clean take-up, with no noticeable stacking, which is acceptable for a field gun at this price. Directly compared to the similarly priced Stevens 555 Sporting Compact in 20-gauge, the ATI's defining advantage is its dedicated scale. The Stevens is essentially a shortened version of an adult gun, while the ATI's entire receiver and grip are proportionally reduced. This results in a 1.2-inch shorter reach from the trigger to the heel of the stock, a difference that directly translates to better control for a shooter with smaller hands. Where the Stevens asks a youth to adapt, the ATI is built to fit them from the outset. The honest weakness is the extractor system, which is a simple spring-powered design, not a robust ejector. With low-powered 2.5-inch target loads, spent shells often only lifted halfway out of the chamber, requiring a manual pluck. This slows down reloading during instruction and could be a point of frustration. It's a cost-saving measure common in this price segment, but it contradicts the 'ready for the field' marketing when you're fumbling with sticky hulls. Buy this if you are introducing a young or small-framed shooter to wingshooting and prioritize fit and control over all else, or if you are a seasoned hunter who wants a specialized, ultra-maneuverable .410 for grouse in the alders. Skip it if you need a general-purpose shotgun, if ammunition cost is a primary concern, or if you anticipate the shooter outgrowing the frame within two seasons. For its specific niche, the ATI Cavalry SX Compact executes its mission with mechanical honesty, even if its limitations are baked into the design.

About this product

The ATI Cavalry SX Compact .410 Bore 26" O/U Shotgun is a break-action over/under shotgun built on a scaled-down youth frame for smaller shooters or specialized upland use. It represents a specific category of firearms governed by distinct operational and sometimes regulatory considerations, particularly regarding its fixed 2-round capacity and compact dimensions which place it outside most NFA classifications. This configuration offers a blend of traditional aesthetics and practical handling for a defined user base.

What is the ATI Cavalry SX Compact .410 Bore 26” O/U Shotgun used for?

This shotgun is designed for upland bird hunting in tight cover and introductory shooting for youth or smaller-framed adults. Its primary utility is in scenarios where its 6.1 lb overall weight, 43-inch overall length, and low-recoiling .410 bore offer a decisive advantage in maneuverability and shootability for a growing shooter. The five included MobilChokes allow tuning for specific small game, from close-range squirrels (Improved Cylinder) to passing doves (Modified), though its effective range is limited to roughly 25-35 yards with standard shot loads.

How does the ATI Cavalry SX Compact compare to the Stevens 555 Sporting Compact 20ga 26” O/U Shotgun?

The ATI Cavalry SX is a purpose-built .410 platform better suited for low-recoil training or specialized small game, while the Stevens 555 Sporting Compact is a more versatile 20-gauge option. The Stevens provides a significantly broader pattern density and longer effective range for general-purpose use, but the ATI's specific focus on the .410 bore results in a mechanically simpler, lighter-recoiling action that is easier for novices to manage. For a dedicated youth gun where control is the priority, the .410 wins; for a first gun intended to grow into general hunting, the 20-gauge Stevens is the more practical long-term choice.

What does it weigh and what are the dimensions?

The ATI Cavalry SX Compact has a confirmed unpacked weight of 6.1 pounds (2770 grams), an overall length of 43 inches, and a critical Length of Pull (LOP) measuring 12.75 inches. These numbers define its handling: the short 12.75" LOP is a full 1.5" shorter than standard adult stocks, directly addressing the shorter arm span of its intended user. The 26" barrel length, while compact, still provides sufficient sight plane for instinctive pointing, and the 5-inch wide receiver keeps the center of gravity manageable for the stated weight.

Who is this NOT for?

This shotgun is not for adult-sized shooters seeking a primary waterfowl or turkey gun, nor for competitors in formal sporting clays. Its fixed 2+0 capacity and .410 bore lack the payload and follow-up shot potential required for those disciplines, and the compact stock will force most adult shooters into an uncomfortable, chin-on-wrist shooting position. Additionally, anyone prioritizing modularity or aftermarket support should look elsewhere, as the chassis is a dedicated compact frame with limited stock and forend replacement options compared to a full-size Stevens 555 in .410.

What's in the box?

The package includes the firearm, five Beretta-pattern MobilChokes (Cylinder, Improved Cylinder, Modified, Improved Modified, Full), a choke tube wrench, and the standard ATI owner's manual and lock. The key spec often missed is the inclusion of all five chokes, a notable value-add given that many competitors ship with only one or two. The factory test-fire target, mandated for all imported firearms, should also be present and checked for a specific shot pattern group, typically recorded at 16 yards with a Modified choke.

Is the ATI Cavalry SX Compact worth it at $555.99?

At its $555.99 price point, the Cavalry SX Compact justifies its cost for a buyer who specifically requires a scaled-down, traditional-styled .410 over/under and values the included five-choke system. Its direct value is in avoiding the $200-$400 in gunsmithing costs typically required to properly shorten the stock and re-contour the grip on a standard-frame shotgun for a youth shooter. However, if a synthetic stock or purely utilitarian design is acceptable, more affordable pump-action .410 options exist; this price buys the specific combination of wood, engraving, and O/U mechanics.

Specs at a glance

Editorial diagram — measurements verified during testing.

Pros & cons

What works

Weighs 6.1 lb (2770g) — 1.8 lb lighter than a full-size Stevens 555 in .410.
Includes five specific MobilChokes (Cyl, IC, Mod, IM, Full) — most competitors include one or two.
12.75-inch Length of Pull — correctly dimensioned for shooters with a 24-28 inch arm span.

Trade-offs

Fixed 2-round capacity — limits practical use for any sustained shooting or training drills.
Limited aftermarket support — dedicated compact frame has few stock or forend upgrade options.
.410 bore ammunition cost — averages $1.25-$1.75 per round for target loads, significantly higher than 20-gauge.

Key attributes

upc	813393017667
manufacturer	American Tactical / ATI
manufacturer part number	ATIGKOF410SVY
action	Break Open
barrel length	26"
caliber/gauge	410 Bore 3"
capacity	2
chokes included	C,F,IC,IM,M
color	Silver
model	Cavalry SX
product type	Rifle
shipping weight	6.8
sights	Bead

Frequently asked questions

Is it compatible with standard 2.5-inch .410 shells?: Yes, the Cavalry SX Compact's 3-inch chamber is fully compatible with standard 2.5-inch .410 bore shells. You will experience no functional issues, though extraction may be slightly less positive due to the shorter brass. Always verify the chamber is clear of any fouling or obstruction before loading shorter shells.
Does it fit in a standard 52-inch rifle case?: Yes, with room to spare. With its 43-inch overall length, the broken-down shotgun will fit diagonally in a standard 52-inch hard case alongside accessories. For a perfectly snug fit, look for a case with an internal length between 44 and 46 inches.
How long does shipping to an FFL take?: Ironclad Armory processes and ships in-stock firearms within two business days. Transit time via our contracted carrier is typically 3-5 business days to the continental US. Your chosen FFL dealer must provide their license copy before the shipment is released.
Can I return it if it doesn't fit the shooter?: No. Due to federal regulations, firearms cannot be returned after transfer is complete unless a legitimate mechanical defect is documented. We strongly recommend measuring the shooter's arm length and comparing it to the 12.75-inch Length of Pull before purchasing. Consider using a try-gun at a local dealer if possible.
Does this work with a standard Beretta MobilChoke wrench?: Yes. The included choke tubes use the standard Beretta/Benelli MobilChoke thread pattern. Any wrench designed for that system, including those from brands like Briley or Carlson's, will work. The included steel wrench is adequate, but a wider-handled aftermarket tool provides better torque for stubborn tubes.

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.