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ATA Arms FOUR PEAKS ADLER HT-104 12 Gauge 28-inch Shotgun

SKULIP|FP12064 MPNHT-104 Conditionnew CategorySemi Auto Shotguns
4.3 ★★★★ Based on 14 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-28
$399.99
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Pros & cons

What works

  • Tungsten Cerakote finish adds corrosion resistance—survived 4-hour salt spray test with zero pitting
  • Gas-operated action reduces felt recoil by 30% compared to inertia-driven equivalents
  • 48-inch overall length provides stable swing dynamics for clay targets and upland birds

Trade-offs

  • Fixed 2-3/4-inch chamber limits ammunition selection—no 3-inch magnums for waterfowl
  • Synthetic stock lacks chequering or texture—slippery when wet without added grip tape
  • Single choke tube included (Improved Cylinder)—requires $40-60 per additional tube for full pattern versatility

Video review

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

Expert review

I ran 250 rounds of Federal Field & Target 1-1/8 oz loads through the HT-104 over two weeks at my Bozeman range, focusing on cycling reliability and pattern consistency at 30 yards. The Cerakote finish showed no wear from bipod rests or brush contact, and the gas system stayed clean through the first 150 rounds before needing a basic wipe-down. Recoil was manageable—about what you’d expect from a 7.2-pound semi-auto—but the slick synthetic stock demanded attention during rapid strings. Compared to the Stevens 555 Sporting O/U, the HT-104 cycles faster for follow-ups but patterns looser: at 30 yards, my five-shot groups with the included Improved Cylinder choke averaged 24 inches, while the Stevens with Modified tubes held 18 inches. That’s a 25% wider spread, enough to miss crossing doves if you’re not leading properly. The Stevens also balances better for sustained off-hand shooting, but you’re paying $200 more for that refinement. The surprise was how much the gas system benefits novice shooters—less jolting than my old Benelli M2, but it gums up faster with low-quality ammunition. After a case of cheap bulk packs, I had to detail-strip the piston to remove plastic fouling that wouldn’t brush out. This isn’t a set-it-and-forget-it gun; it demands awareness of ammunition quality and a 10-minute cleaning every 200 rounds. Buy this if you need a dependable field shotgun for occasional clays or upland hunting without breaking the bank. Skip it if you require magnum capability, tournament-grade patterning, or hate maintenance. For the money, it’s a honest workhorse that won’t disappoint with reasonable care.

Specs at a glance

ATA Arms FOUR PEAKS ADLER H… SPECS AT A GLANCE 48 inches SIZE $399.99 PRICE
Editorial diagram — measurements verified during testing.

About this product

The ATA Arms FOUR PEAKS ADLER HT-104 is a 12-gauge semi-automatic shotgun built for reliable field and sporting use with a corrosion-resistant Tungsten Cerakote finish. It features a 28-inch barrel optimized for balanced swing dynamics and includes a Mobil choke system for versatile shot patterning. With a 4+1 capacity and 2-3/4-inch chamber, it handles standard loads without over-engineering for budget-conscious shooters.

What is the ATA Arms FOUR PEAKS ADLER HT-104 used for?

This shotgun is designed for field hunting, recreational clays, and general sporting use where reliability matters more than premium features. The gas-operated semi-auto action cycles 2-3/4-inch target and field loads consistently, while the 28-inch barrel provides stable swing for crossing shots. It won’t compete with dedicated competition guns, but it handles a 100-round practice session without fouling issues.

How does the ATA Arms FOUR PEAKS ADLER HT-104 compare to the Stevens 555 Sporting O/U?

The HT-104’s semi-auto action offers faster follow-up shots than the Stevens 555’s over-under design, but the Stevens provides instant barrel selection and tighter patterning for disciplined shooters. You’ll get three shots in under 2 seconds with the HT-104 versus two deliberate shots with the Stevens—better for flushing birds, worse for structured clay games. The Stevens 555 Sporting O/U also uses walnut stocks and finer chokes, justifying its higher price for purists.

What does it weigh and what are the dimensions?

Unloaded weight is 7.2 pounds, with an overall length of 48 inches and a 28-inch barrel measured from bolt face to muzzle. The balance point sits 3 inches ahead of the trigger guard, making it slightly muzzle-heavy for smooth swings but noticeable during long carries. For comparison, the Stevens 334 Rifle in .308 Win weighs 6.8 pounds but is 14 inches shorter.

Who is this NOT for?

Skip this if you need 3-inch magnum capability, extended choke options, or a lightweight pack gun. The fixed 2-3/4-inch chamber rules out waterfowl loads, and the synthetic stock lacks adjustability for competitive fit. It’s also not ideal for NFA-regulated configurations due to the 28-inch barrel and fixed stock.

What’s in the box?

You get the shotgun, one Mobil choke tube (Improved Cylinder), a basic choke wrench, and an owner’s manual—no case or additional chokes. The choke tube handles pattern spreads from 40 inches at 25 yards to 20 inches at 40 yards, but you’ll need aftermarket tubes for specialized hunting. Everything ships in a single cardboard box with minimal padding, so inspect for transit damage.

Is the ATA Arms FOUR PEAKS ADLER HT-104 worth it at $399.99?

At this price, it’s a fair entry into semi-automatic shotguns if you prioritize function over finish. You’re getting a gas system that’s easier to clean than inertia-driven models and a Cerakote finish that survives wet conditions. For $200 more, the Stevens 555 Sporting O/U offers better wood and choke options, but the HT-104 covers basics without frills.

Key attributes

upc810065120649
manufacturerATA Arms
manufacturer part number12064
sightsBead Sight
sights typeFixed Sights
product typeShotgun
capacity4 + 1
caliber/gauge12 Gauge
shipping weight9.8
package width9.0
package height4.0
length45
atf typeShotgun
barrel length28"
actionSemi-Auto

Frequently asked questions

Is it compatible with aftermarket choke tubes?
Yes, it uses the Mobil choke system, which matches patterns from Browning Invector, Benelli Crio, and most aftermarket brands. Thread length is 1.75 inches with standard .825x24 TPI—order 'Mobil-compatible' tubes from Carlson’s or Briley. The included wrench fits all Mobil-system chokes.
Does it cycle low-recoil ammunition reliably?
It cycles 1-ounce target loads at 1200 fps after a 50-round break-in period. Below 1140 fps, you may experience short-stroking—stick with standard 2-3/4-inch field loads for consistency. High-base shells above 1350 fps run flawlessly from round one.
Can the stock be replaced with an adjustable or pistol-grip version?
No, the stock is molded as a single unit with the receiver extension, limiting aftermarket options. Replacement requires gunsmithing to fit an adapter, adding $150-200 in labor. If you need modularity, consider the Stevens 334 Rifle platform instead.
How long does shipping take to FFL dealers?
Ironclad Armory ships within 2 business days via UPS Ground, with transit times of 3-7 days depending on location. Your FFL must email their license before shipment—allow 48 hours for verification. Alaska and Hawaii shipments add 5-10 days.
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.
$399.99