Retay USA ACEMBL28 Ace Full Size 12 Gauge Semi-Auto 3.50" 3+1 28" Bottomland Vent Rib Barrel, Bottomland Drilled Back Steel Receiver, Adj Shim Bottomland Synthetic Stock, Ambidextrous
The Retay USA Ace Full Size 12 gauge semi-auto shotgun is a versatile, field-proven inertia-driven shotgun built for hunters and sport shooters who demand reliable performance without the complexity of traditional gas systems. With a 3.5-inch chamber, 28-inch vent rib barrel, and 3+1 capacity, the Ace handles everything from waterfowl and upland game to clay courses. The Bottomland synthetic stock and receiver sport a tough, durable camo finish that blends into real-world hunting conditions, while the drilled-back steel receiver keeps weight down where you need it.
The Ace's inertia-plus action cycles cleanly with minimal maintenance—no gas tubes to clean or adjust. A reversible safety and push-button removable trigger make this gun equally at home for left- or right-handed shooters. The optimized lengthened forcing cone works with the full 28-inch tube to pattern shot efficiently and reduce perceived recoil, while an airy recoil pad helps soak up the punishment of heavy loads. A single fiber optic bead sight makes target acquisition fast in low light.
The adjustable shim stock lets you fine-tune fit to your frame—the base length of pull is 14.5 inches, and the included shim kit lets you dial in the perfect cheek and drop. Whether you're hunting over decoys at first light, pushing through brush for roosters, or running clays on a Saturday afternoon, the Ace delivers the dependability and user-friendly handling that separates working shotguns from shelf queens.
Key Features
- Inertia-Plus action for reliable cycling with minimal maintenance
- 3.5-inch chamber and 3+1 magazine capacity for versatile hunting and sport shooting
- 28-inch vent rib barrel with optimized lengthened forcing cone for efficient patterns and reduced recoil
- Ambidextrous reversible safety and push-button removable trigger—built for left and right-handed shooters
- Drilled-back steel receiver paired with Bottomland synthetic stock for rugged, lightweight performance
- Adjustable shim stock (14.5-inch base LOP) for custom fit
- Single fiber optic bead sight for fast target acquisition
- Airy recoil pad to manage perceived recoil and fatigue
Specifications
| Gauge | 12 |
| Chamber | 3.5" |
| Action Type | Inertia-Plus Semi-Auto |
| Barrel Length | 28" |
| Barrel Style | Vent Rib |
| Magazine Capacity | 3+1 |
| Receiver Material | Drilled-Back Steel |
| Stock Material | Bottomland Synthetic |
| Length of Pull (Base) | 14.5" |
| Adjustability | Adjustable Shim Kit Included |
| Safety | Reversible |
| Trigger | Push-Button Removable |
| Sight | Single Fiber Optic Bead |
| Recoil Pad | Airy Pad |
| Finish | Bottomland |
Frequently Asked Questions
Is the Retay USA Ace left-hand friendly?
Yes. The reversible safety and push-button removable trigger make this shotgun suitable for both left- and right-handed shooters. You can configure the controls to match your natural hand preference.
What's included with the shotgun?
The Ace ships with an adjustable shim kit that allows you to customize the fit of the Bottomland synthetic stock. The shim system lets you dial in cheek height and drop to match your body geometry and shooting position.
What action type does the Ace use?
The Retay USA Ace is a semi-automatic shotgun powered by an Inertia-Plus action. This design cycles the gun using recoil energy, with no gas tube to clean or adjust—it's simple, reliable, and low-maintenance.
Can the Ace handle 3.5-inch ammunition?
Yes. The Ace features a 3.5-inch chamber, so it will cycle both 3-inch and 3.5-inch 12-gauge loads. The optimized lengthened forcing cone helps manage recoil across the full range of ammunition.

