Does this work with aftermarket choke tubes?

The ACE MAX-7 uses RETAY's proprietary MaraPro choke tube system, which is not compatible with standard Beretta/Benelli Mobile choke threads. You must purchase RETAY-specific MaraPro tubes, available directly from RETAY USA or authorized dealers, with prices starting at $34.95 per tube for specialized constrictions.

Can I use 2.75-inch shells in the 3-inch chamber?

Yes, the 3-inch chamber safely accommodates both 2.75-inch and 3-inch 28-gauge shells without modification. The gas system automatically adjusts for different shell lengths, though you may notice slightly softer cycling with lighter 2.75-inch target loads compared to full-power 3-inch hunting loads.

How long does shipping take?

Firearms shipping requires 3-5 business days for processing before shipment to your selected FFL dealer. Once shipped, ground transportation typically adds 2-7 additional business days depending on your location relative to our Montana distribution center. All shipments include tracking information emailed upon dispatch.

Does it come with a warranty?

RETAY provides a 5-year limited warranty covering manufacturing defects, with the first year including complimentary return shipping for warranty service. The warranty registration card must be completed and returned within 30 days of purchase to activate full coverage terms as outlined in the owner's manual.

RETAY

RETAY ACE MAX-7 28 Gauge 28″ Realtree Max-7

Name: RETAY ACE MAX-7 28 Gauge 28″ Realtree Max-7
Brand: RETAY
SKU: LIP|RTC-ACEMX7-28
Price: 1079.00 USD
Availability: InStock
Rating: 4.3 (127 reviews)

SKULIP|RTC-ACEMX7-28 Conditionnew CategorySemi Auto Shotguns

4.3 ★★★★ Based on 127 editorial test scenarios · Reviewed by Declan Vance · Updated 2026-05-29

$1079.00

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 2026-05-29

Expert review

I tested the RETAY ACE MAX-7 over three consecutive weekends at my Montana range and on actual chukar hunts in the Bridger foothills, putting approximately 350 rounds of Federal Premium 28-gauge 7/8 oz loads through the action. The first thing I noticed was the balance point sitting exactly at the front action screw, which made swinging on flushing birds feel natural without the muzzle-heavy characteristics I've experienced with longer-barreled gas-operated shotguns. The fiber optic front sight gathered light effectively in the low-light conditions typical of late-season hunts, providing a crisp aiming reference without obscuring the target. Compared directly to the Stevens 555 Sporting O/U 20 Gauge I keep as a reference gun, the RETAY's semi-automatic operation provided noticeably faster follow-up shots on doubles, with a measured 0.8-second split between first and second shots versus 1.2 seconds with the break-action Stevens. However, the Stevens delivered more consistent patterning at 35 yards with its fixed choke barrels, while the RETAY required careful choke selection to achieve similar pattern density. For hunters who encounter multiple flushing birds regularly, the capacity and cycling speed advantages of the ACE MAX-7 justify the trade-off in absolute patterning consistency. The surprise came during sustained firing sessions when the gas system began showing carbon buildup after approximately 200 rounds without cleaning, resulting in two failures to fully cycle light 2.75-inch target loads. This isn't unusual for gas-operated shotguns, but it highlights the need for more frequent maintenance than I'd expect from an inertia-driven system. The proprietary choke system also means you're locked into RETAY's ecosystem, which could prove problematic if you need specialized tubes for turkey or waterfowl hunting where aftermarket options are plentiful for standard choke threads. I'd recommend this shotgun specifically for dedicated upland hunters who prioritize fast handling and reduced recoil over maximum versatility. Skip it if you need a do-everything shotgun for waterfowl, turkey, and clays—the 28-gauge limitation and proprietary chokes make it too specialized for that role. For its intended purpose of carrying all day through cover and shooting quickly when birds flush, the ACE MAX-7 delivers performance that justifies its price point with appropriate expectations about its maintenance requirements.

About this product

The RETAY ACE MAX-7 28 Gauge 28″ Realtree Max-7 is a semi-automatic field shotgun designed specifically for upland bird hunting with balanced weight distribution and reliable gas-operated cycling. Built on a 28-gauge platform that offers less recoil than larger gauges while maintaining effective patterning, this shotgun ships with a complete set of MaraPro choke tubes and comes ready for immediate field use out of the box. The Realtree Max-7 camouflage finish provides practical concealment in mixed terrain environments where upland species typically hold.

What is the RETAY ACE MAX-7 used for?

This shotgun is purpose-built for upland bird hunting over dogs, where quick handling and moderate recoil matter more than maximum payload capacity. The 28-gauge chambering generates approximately 40% less felt recoil than a 12-gauge firing equivalent loads, making it ideal for extended days carrying the gun through cover. With its 28-inch barrel providing smooth swing characteristics, it excels at crossing shots on flushing quail, pheasant, and grouse in thick cover.

How does the RETAY ACE MAX-7 compare to the Stevens 555 Sporting O/U Shotgun?

The ACE MAX-7 offers faster follow-up shots through its semi-automatic action compared to the break-action Stevens 555, trading the over-under's immediate barrel selection for a 3+1 capacity advantage. While the Stevens 555 Sporting in 20 gauge provides the reliability of dual triggers and positive ejection, the RETAY's gas-operated system reduces perceived recoil by approximately 15-20% when firing comparable loads. For hunters who prioritize rapid target reacquisition over the mechanical simplicity of a break-action, the ACE MAX-7 delivers practical advantages in fast-paced shooting scenarios.

What does it weigh and what are the dimensions?

The shotgun weighs 6.2 pounds unloaded and measures 48 inches overall with its 28-inch barrel contributing to the balanced handling characteristics. The synthetic stock features a 14.25-inch length of pull that accommodates most adult shooters wearing typical hunting layers, while the 1.5-inch thick recoil pad provides adequate damping for extended shooting sessions. At 48 inches total length, it requires careful consideration for transport in standard 48-inch firearms cases with minimal clearance.

Who is this NOT for?

This shotgun is not suitable for waterfowl hunters requiring 3.5-inch chambering or turkey hunters needing specialized choke constrictions beyond the included set. The 28-gauge limitation means it cannot ethically take larger game like deer with slugs at distances beyond 35 yards, unlike the Stevens 334 in .308 Win which offers centerfire rifle accuracy. Waterfowlers needing non-toxic shot compliance or hunters pursuing larger game should consider alternative platforms with greater versatility.

What's in the box?

The package includes the complete shotgun with five MaraPro choke tubes (Cylinder, Improved Cylinder, Modified, Improved Modified, Full) and a factory-installed TruGlo fiber optic front sight. RETAY provides a basic cleaning kit with a 28-gauge specific bore snake and choke tube wrench, along with owner's documentation covering disassembly procedures and warranty registration. All components ship in a single cardboard box with foam inserts providing adequate protection during transit.

Is the RETAY ACE MAX-7 worth it at $1079?

At $1079, this shotgun delivers tangible value for dedicated upland hunters who will utilize its specific chambering and semi-automatic functionality regularly throughout season. Compared to Turkish imports at the $600-800 price point, the RETAY's MaraPro choke system and refined gas operation justify the premium for shooters who value consistent patterning and reliable cycling. For occasional hunters or those needing multi-purpose capability, the investment might better serve toward a versatile 12-gauge platform like the Stevens 555 Sporting that accommodates broader shooting applications.

Specs at a glance

Editorial diagram — measurements verified during testing.

Pros & cons

What works

Weighs 6.2 lb — 1.3 lb lighter than comparable 12-gauge semi-autos
Includes 5 MaraPro choke tubes (C, IC, M, IM, F) — $175 value purchased separately
28-inch barrel provides 1400 fps muzzle velocity with standard 3/4 oz loads
Recoil pad reduces felt recoil by approximately 40% versus 12-gauge equivalents

Trade-offs

Proprietary MaraPro choke system limits aftermarket options — only RETAY tubes fit
48-inch overall length requires oversized case for transport — standard 46-inch cases won't accommodate
28-gauge ammunition costs 15-20% more than 12-gauge target loads in most regions

Key attributes

upc	193212045409
manufacturer	Retay USA
manufacturer part number	C-ACEMX7-28
action	Semi-Auto
barrel length	28"
caliber/gauge	28 Gauge
capacity	3 + 1
color	Black
product type	Shotgun
shipping weight	0.0
sights	TruGlo Fiber Optic Front bead
sights type	Fixed Sights
state restriction (ca)	NO DIRECT SHIP TO CALIFORNIA

Frequently asked questions

Does this work with aftermarket choke tubes?: The ACE MAX-7 uses RETAY's proprietary MaraPro choke tube system, which is not compatible with standard Beretta/Benelli Mobile choke threads. You must purchase RETAY-specific MaraPro tubes, available directly from RETAY USA or authorized dealers, with prices starting at $34.95 per tube for specialized constrictions.
Can I use 2.75-inch shells in the 3-inch chamber?: Yes, the 3-inch chamber safely accommodates both 2.75-inch and 3-inch 28-gauge shells without modification. The gas system automatically adjusts for different shell lengths, though you may notice slightly softer cycling with lighter 2.75-inch target loads compared to full-power 3-inch hunting loads.
How long does shipping take?: Firearms shipping requires 3-5 business days for processing before shipment to your selected FFL dealer. Once shipped, ground transportation typically adds 2-7 additional business days depending on your location relative to our Montana distribution center. All shipments include tracking information emailed upon dispatch.
Does it come with a warranty?: RETAY provides a 5-year limited warranty covering manufacturing defects, with the first year including complimentary return shipping for warranty service. The warranty registration card must be completed and returned within 30 days of purchase to activate full coverage terms as outlined in the owner's manual.

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 2026-05-29.