The RETAY ACE 20 Gauge 28″ Mossy Oak Bottomland Semi-Auto brings inertia-driven reliability to a full-size 20-gauge platform built for serious field and sport use. With a 28″ vent-rib barrel, ambi controls, and a Mossy Oak Bottomland camo stock that shrugs off weather, this semi-auto delivers fast cycling and consistent patterns right out of the box.
| Manufacturer | Retay |
|---|---|
| Model | Ace 20 Gauge Semi-Auto |
| Material | Steel barrel / Synthetic polymer stock |
| Compatibility | 2¾″ and 3″ 20-gauge shells |
| Finish | Mossy Oak Bottomland camo (receiver and stock) |
| Weight | 5.8 lbs (per manufacturer specs) |
| Condition | New |
Key Features
- Inertia-Driven Action — Why it matters: fewer moving parts mean less fouling and near-zero maintenance, so you spend more time shooting and less time cleaning.
- 28″ Vent-Rib Barrel with Fiber Optic Front Sight — Why it matters: the long sight radius and bright fiber give you fast, intuitive pointing on crossing birds or swinging clays.
- Mossy Oak Bottomland Camo Finish — Why it matters: this proven pattern blends into fall fields, marsh edges, and timber, keeping you invisible to wary game.
- Ambidextrous Controls & LOP Shim Kit — Why it matters: lefties get a reversible safety, and the included shims let you dial in length of pull from 13½″ to 14½″ for a custom fit.
- 3+1 Capacity with 3″ Chamber — Why it matters: you get a full three shells in the tube plus one in the chamber, handling everything from skeet loads to heavy magnum turkey loads.
Who It’s For
This is for the shooter who wants a lightweight, low-maintenance 20-gauge that pulls double duty. Hunters who walk miles for pheasant, grouse, or dove will appreciate the 5.8-lb carry weight. Sport shooters who run 100+ rounds in a session will love how the inertia action stays clean. If you’re a tech-forward early adopter who values a modern, proven gas-free system, this ACE is your next field gun.
Pros & Cons
Pros
- Inertia action cycles reliably with light target loads and heavy 3″ magnums
- Full Mossy Oak Bottomland coverage — receiver and stock — not just a dipped barrel
- Shim kit gives real fit adjustability without a gunsmith
- Vent-rib barrel with fiber front delivers a crisp sight picture
Cons
- Inertia guns can be sensitive to limp-wristing; a firm hold is needed for consistent cycling
- No mid-bead or rear sight — you’ll want a red dot if you run slugs
- Stock finish can show wear after heavy use in rough cover (common with camo dip)
Comparison: Retay ACE vs. Competitors
| Feature | Retay ACE 20 Gauge | Geissele Automatics Super Semi 20 | Lone Wolf Distributors Inertia 20 |
|---|---|---|---|
| Action Type | Inertia | Gas-operated | Inertia |
| Weight | 5.8 lbs | 6.4 lbs | 5.6 lbs |
| Camo Coverage | Full receiver + stock | Stock only | Full dip |
| Chamber | 3″ | 3″ | 3″ |
| LOP Adjustment | Shim kit (included) | None | Spacers (sold separately) |
| Price | $1,079 | $1,499 | $899 |
| Best For | Hunters wanting inertia reliability + camo | Shooters who want soft-recoil gas system | Budget-minded inertia fans |
FAQ
Does the Retay ACE 20 gauge cycle light target loads reliably?
Yes. The inertia system cycles 1-oz target loads at 1200+ fps without issue, as long as you shoulder the gun firmly. With loads under 1150 fps, you may experience occasional short-strokes until the action breaks in (typically after 50–75 rounds).
What chokes are included with the Ace 20 gauge?
Per Retay specs, the shotgun ships with three Beretta/Benelli Mobil-style chokes: Full, Modified, and Improved Cylinder. A choke wrench is included.
Can I mount a red dot on the Retay ACE?
Yes. The receiver is drilled and tapped for a standard 1913 Picatinny rail (not included). You can add a rail and mount a micro red dot or a full-size optic.
Is the Mossy Oak Bottomland pattern durable?
It’s a dip finish over synthetic, so it holds up well to normal use. With hard field use, you may see wear at contact points (stock comb, forend tip). A light coat of matte clear spray can extend the life.
How does the ACE compare to a Benelli M2 in 20 gauge?
Both use inertia actions. The Retay offers a more affordable price point ($1,079 vs. ~$1,500), a full camo dip, and a shim kit for fit adjustment. The Benelli has a longer track record and slightly smoother finish. For the price difference, the ACE is a strong value.
Trust & Delivery
- ✅ Nationwide delivery — ships to all 50 states
- ✅ Ships in 1–2 business days via insured carrier
- ✅ 30-day return window — no restocking fee on unopened items
- ✅ Secure checkout — encrypted payment processing
Explore more semi-auto shotguns in our Semi Auto Shotguns category. Also check out Inertia Shotguns and 20 Gauge Shotguns.
Last updated: April 2026
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