Description
The Retay ACE-R 20 Gauge Gamekeeper 28″ is a special-finish version of Retay’s ACE-R 20 gauge semi-auto. The Gamekeeper package pairs Mossy Oak Original Bottomland camo on the stock, forend and barrel with a bronze receiver, giving a classic waterfowl look with a little extra style. This listing is Retay model B-RACEGMKPR-28, UPC 193212037015, MSRP $1,149.

Retay ACE-R 20 Gauge Gamekeeper 28 Overview
At 5 lb 9 oz, this is a very light 20 gauge for its 28-inch barrel, which makes it easy to carry into a flooded timber hole, a dove field or a pheasant strip. The longer barrel gives a smooth, steady swing on passing birds. Mossy Oak Original Bottomland is a muddy, timber-heavy pattern that works well in swamps, river bottoms and field edges.
How the Action Works
The Retay ACE-R 20 Gauge Gamekeeper 28″ runs on Retay’s Inertia Plus rotating bolt. An inertia shotgun uses recoil to cycle rather than gas, so the action stays clean and simple, a real advantage in wet, dirty hunting conditions. Like other inertia guns, it benefits from a short break-in and may not cycle the lightest target loads, so start with standard field loads.
Retay’s push-button removable trigger group makes cleaning simple, and the Easy Out system lets you unload the magazine tube without cycling every shell through the action.

Barrel and Chokes
The Dead Straight deep bore drilled barrel and factory-lengthened forcing cone are Retay’s answer to better patterns, with up to 20 percent more pellets on target by Retay’s numbers. You get cylinder, improved cylinder, modified, improved modified and full chokes plus an extended long-range waterfowl tube rated for steel. A single fiber optic bead keeps the rib clean.
Finish and Fit
The bronze-toned receiver is what sets the Gamekeeper apart from a standard camo ACE-R. Length of pull is 14.5 inches, and the included shim kit adjusts drop and cast. The Airy recoil reduction system takes up to 30 percent off felt recoil, and an oversized reversible safety is easy to use with gloves. Note that Retay’s 20 gauge receivers are not drilled and tapped.
Retay ACE-R 20 Gauge Gamekeeper 28 Specifications
- Manufacturer: Retay USA, model B-RACEGMKPR-28
- Gauge: 20 ga, 3″ chamber
- Action: semi-auto, Inertia Plus rotating bolt
- Barrel: 28″ deep bore drilled, lengthened forcing cone
- Capacity: 3+1
- Overall length: 50″
- Weight: 5 lb 9 oz (Retay series spec)
- Finish: Original Bottomland camo, bronze-finished receiver
- Chokes: C, IC, M, IM, F, extended WF long range
- Sight: single fiber optic bead
- Trigger: push-button removable; safety oversized and reversible
- LOP: 14.5″ with shim kit
- Warranty: limited lifetime

Before You Buy
A 20 gauge has less payload and range than a 12 gauge with steel shot, so keep waterfowl shots inside sensible distances and choose quality non-toxic loads. A gun this light recoils more than a heavier one with the same shell. For migratory birds, the magazine must be plugged to hold two shells under federal law. The receiver is not drilled and tapped for an optic.
Who the Retay ACE-R 20 Gauge Gamekeeper 28 Suits
The Retay ACE-R 20 Gauge Gamekeeper 28″ makes the most sense for hunters who want one light gun for early-season teal and wood ducks, September doves and late-fall pheasants. Smaller-framed shooters and younger hunters often find a 20 gauge of this weight easier to carry and mount than a 12 gauge. If you mainly hunt big water with long shots at geese, a 12 gauge ACE-R with 3-1/2 inch capability is the better tool.
Buy the Retay ACE-R 20 Gauge Gamekeeper 28 at MAG5 Firearms
If you want a light, handsome 20 gauge semi-auto that can handle ducks, doves and upland birds, the Retay ACE-R 20 Gauge Gamekeeper 28″ is a standout with a limited lifetime warranty behind it. MAG5 Firearms is a family-owned FFL in Collegeville, PA. Your shotgun ships to your local FFL dealer for transfer, and all applicable laws apply. Browse more firearms for sale or visit Retay’s ACE-R Gamekeeper page.






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