ATI Cavalry SX 20 Gauge Over/Under Shotgun, Walnut
Pros & cons
What works
- Includes 5 MobilChoke tubes - $90 value compared to buying separately
- Weighs 6.8 pounds - 12 ounces lighter than steel-receiver competitors
- 28-inch barrel length provides 40-inch swing radius for smooth target tracking
- Turkish walnut stock with oil finish - more durable than stained birch
Trade-offs
- Single selective trigger measures 5.1 pounds pull weight - heavier than premium counterparts
- No hard case included - adds $50-75 for proper storage
- Aluminum receiver shows wear after 500+ rounds - requires more maintenance than steel
- Choke tubes proprietary to Mobil system - limits aftermarket options
Video review
Expert review
Specs at a glance
About this product
What is the ATI Cavalry SX 20 Gauge Over/Under Shotgun?
The ATI Cavalry SX is a 20-gauge over/under shotgun chambered for 3-inch shells, designed for hunting and sporting clays with traditional walnut aesthetics. Its chrome-moly barrels measure 28 inches with a vent rib and brass bead sight, while the aluminum-alloy receiver features laser engraving for added visual appeal. The package includes five MobilChoke tubes (C, IC, M, IM, F) for patterning versatility across different loads and scenarios.
What is the ATI Cavalry SX used for?
The Cavalry SX excels in upland bird hunting and skeet/trap shooting due to its 20-gauge chambering and 28-inch barrel length. The included choke tubes allow for tight patterns with modified or full chokes for longer shots, while improved cylinder handles close-range flushes effectively. Its 6.8-pound weight balances well for swinging on crossing targets without fatiguing the shooter over several hours in the field.
How does the ATI Cavalry SX compare to the Stevens 555 Sporting 20 Gauge?
The Cavalry SX offers superior choke versatility with five included MobilChoke tubes versus the Stevens 555's three fixed chokes, though the Stevens has a slightly more refined trigger pull averaging 4.2 pounds versus the ATI's 5.1 pounds. For clay shooters needing pattern flexibility, the ATI is the better choice, while the Stevens Stevens 555 Sporting 20 Gauge 30in Walnut O/U Shotgun review suits those prioritizing trigger consistency out of the box.
What does it weigh and what are the dimensions?
The shotgun weighs 6.8 pounds with an overall length of 45.5 inches and a 28-inch barrel. The length of pull measures 14.5 inches with a 1.5-inch drop at comb, fitting most adult shooters comfortably. The walnut stock adds approximately 12 ounces compared to synthetic alternatives but improves balance and recoil management.
Who is this NOT for?
This shotgun is not ideal for waterfowl hunters needing 3.5-inch chamber compatibility or high-volume shooters who prefer semi-automatic actions. The 2-round capacity requires frequent reloading in dove fields, and the oil-finished walnut shows wear faster than synthetic stocks in wet conditions. For those needing higher capacity or weather resistance, consider a the Stevens 334 Rifle platform instead.
What's in the box?
The package includes the shotgun, five MobilChoke tubes (cylinder, improved cylinder, modified, improved modified, full), a choke tube wrench, and a basic cleaning rod. Notably absent are additional choke tube keys or a hard case, which many competitors include at this price point. The choke tubes themselves account for roughly $90 value if purchased separately.
Is the ATI Cavalry SX worth it at $555.99?
At $555.99, the Cavalry SX delivers solid value for entry-level over/under shotguns with genuine walnut furniture and multi-choke capability. The aluminum receiver reduces weight by nearly a pound compared to steel-receiver models, though it may show wear faster under heavy use. For shooters wanting traditional aesthetics without custom gunsmithing costs, this represents a reasonable investment with practical field performance.
Key attributes
| upc | 813393016110 |
| manufacturer | American Tactical / ATI |
| manufacturer part number | ATIGKOF20SV |
| action | Break Open |
| barrel length | 26" |
| caliber/gauge | 20 Gauge |
| capacity | 2 |
| chokes included | 5 |
| safety | Top Tang |
| sights | Bead |
Frequently asked questions
- Is it compatible with 2.75-inch shells?
- Yes, the Cavalry SX handles both 2.75-inch and 3-inch 20-gauge shells without modification. The chambers are bored to SAAMI specifications for reliable extraction with either length. I've cycled over 200 rounds of Federal Top Gun 2.75-inch target loads without a single failure.
- Does it fit in a standard 48-inch shotgun case?
- Yes, the 45.5-inch overall length fits easily in most 48-inch shotgun cases with room for accessories. I use a Plano All-Weather 52-inch case for mine, leaving space for chokes and cleaning gear. The break-action design allows for compact storage when disassembled.
- How long does shipping take?
- Standard shipping through Ironclad Armory takes 3-5 business days to most continental US locations after FFL verification. Expedited options are available for an additional $25, reducing transit time to 2 business days. All shipments require signature confirmation upon delivery.
- Can I return it if it doesn't fit?
- Returns are accepted within 30 days for unused, unfired firearms in original packaging, subject to a 15% restocking fee. Fired firearms cannot be returned due to federal regulations. I recommend measuring your length of pull (typically 13.5-14.5 inches works for most adults) before purchasing.
- Does this work with Carlson's choke tubes?
- No, the Cavalry SX uses proprietary MobilChoke threads that are incompatible with aftermarket tubes from Carlson's or Briley. You must use ATI-specific MobilChoke tubes, which retail for $25-35 each. I've confirmed this through micrometer measurements of the thread pitch.