RETAY ACE-R Max-7 20 Gauge 28″ Realtree Camo
Pros & cons
What works
- Weighs 6.15 lbs — nearly 0.6 lbs lighter than many gas-operated 20-gauges, reducing carry fatigue.
- Cycles all 2 3/4" and 3" 20-gauge loads without manual adjustment, a key advantage over gas guns.
- Includes five MaraPro choke tubes, saving $75-$100 versus buying a standard set separately.
Trade-offs
- Proprietary MaraPro choke system restricts aftermarket tube selection compared to industry-standard threads.
- Requires a firm 10-12 lbs of shoulder pressure to cycle reliably — not ideal for inexperienced shooters.
- Synthetic camo stock has minimal texturing; adding Talon Grips or skate tape is recommended for wet conditions.
Video review
Expert review
Specs at a glance
About this product
The RETAY ACE-R Max-7 is a semi-automatic 20-gauge shotgun specifically engineered for consistent performance across a wide range of hunting loads using an inertia piston system.
What is the RETAY ACE-R Max-7 used for?
This shotgun is designed primarily for waterfowl and upland bird hunting, where quick follow-up shots and camo concealment are critical. The inertia piston system reliably cycles lighter 2 3/4" target loads up to heavy 3" steel waterfowl loads, making it a versatile field tool. Its 28" barrel and overall length of 50" provide a smooth swing for pass shooting, while the 14.5" length of pull (adjustable with the included shim kit) aids in mounting consistency.
How does the RETAY ACE-R Max-7 compare to the Stevens 555 Sporting Compact 20ga?
Compared to the Stevens 555 Sporting Compact 20ga over-under, the RETAY is better suited for high-volume shooting scenarios like crowded dove fields or duck blinds. While the Stevens is a simple, reliable break-action with dual 26" barrels, weighing approximately 6.5 lbs, the RETAY's semi-auto action reduces felt recoil significantly during extended sessions—a key advantage when you're firing dozens of shells. However, the Stevens offers faster barrel interchangeability and a cleaner profile ideal for walking hunts.
What does it weigh and what are the dimensions?
Unloaded weight is 6.15 lbs (2.79 kg) with an overall length of 50". The 28" barrel provides a sight radius of approximately 42" from the receiver to the TruGlo fiber optic front bead, with a barrel internal diameter of 0.615" at the muzzle. The stock's 14.5" length of pull can be adjusted for drop and cast using the provided polymer shims, accommodating most adult shooters within a 30-minute installation window.
Who is this NOT for?
This is not for the budget-conscious shooter or someone seeking a dedicated slug gun for deer hunting. The inertia system requires a firm shoulder mount to cycle correctly—it will not function reliably from a bench rest or when "limp-wristed." For hunters requiring a dedicated rifled barrel and scope mount for sabot slugs, a platform like the Stevens 334 bolt-action rifle in .308 Win is a far better choice for precision and energy at range.
What's in the box?
You receive the shotgun, five MaraPro choke tubes (Cylinder, Improved Cylinder, Modified, Improved Modified, Full), a choke tube wrench, a three-piece polymer shim kit for stock adjustment, and the owner's manual. The gun ships with the Improved Cylinder choke installed, and the manual details a 400-round break-in period with heavier loads (minimum 1 1/8 oz) to ensure the inertia piston seals properly.
Is the RETAY ACE-R Max-7 worth it at $1079?
At $1079, it's worth the investment for hunters who need a reliable, low-maintenance semi-auto that handles variable ammunition without gas system adjustments. Compared to a gas-operated competitor, you're paying for simplified field-stripping (the entire bolt group removes as one unit) and the elimination of gas port fouling. If your primary use is clay sports with occasional hunting, a traditional over-under like the Stevens 555 Sporting may offer better value and perceived durability.
Key attributes
| upc | 193212029874 |
| manufacturer | Retay USA |
| manufacturer part number | B-RACEMX7-28 |
| action | Semi-Auto |
| atf type | Shotgun |
| barrel length | 28" |
| caliber/gauge | 20 Gauge |
| capacity | 3 + 1 |
| package height | 2.05 |
| package width | 9.55 |
| product type | Shotgun |
| shipping weight | 9.65 |
| sights | TruGlo Fiber Optic Front bead |
| sights type | Fixed Sights |
Frequently asked questions
- Is it compatible with standard 20-gauge choke tubes?
- No, it uses RETAY's proprietary MaraPro choke system, not the common Beretta/Benelli Mobilchoke or Browning Invector threads. The included five tubes (C, IC, M, IM, F) cover all hunting needs, but aftermarket options are limited to the MaraPro line from manufacturers like Carlson's.
- Does it fit in a standard 52-inch rifle case?
- Yes. With the 28" barrel and an overall length of 50", it will fit in nearly any 52" hard or soft case with room for a choke wrench and a box of shells. For air travel, use a TSA-approved lockable case like those from Plano or Pelican.
- How long does shipping take?
- Ironclad Armory processes online orders within 2 business days. Transit via FedEx Ground typically adds 3-5 business days for continental U.S. deliveries. All shipments require signature confirmation from an adult over 21 upon delivery.
- Can I return it if it doesn't fit?
- No. Due to federal firearm regulations, all gun sales are final once the firearm has been transferred to you by a licensed dealer (FFL). Ensure the 14.5" length of pull and overall fit work for you by handling a similar model at a local retailer before purchasing online.