EAA Corp MC312 Goose 12 Gauge Shotgun 28″ Barrel

The EAA Corp MC312 Goose 12 Gauge Shotgun 28″ Barrel brings inertia-driven reliability and an optics-ready receiver straight out of the box, including a factory-installed red dot. This semi-auto is built for waterfowl hunters who need fast follow-up shots on fast-moving birds, handling 2 3/4″, 3″, and 3.5″ shells without a hiccup.

Specification	Detail (per manufacturer specs)
Manufacturer	EAA Corp (Girsan)
Model	MC312 Goose
Material	Synthetic polymer stock, steel receiver
Compatibility	12 Gauge 2 3/4″, 3″, 3.5″ shells
Finish	Blued / matte black
Weight	Approx. 6.8 lbs (per EAA specs)
Condition	New

Key Features

• Inertia-Driven Action — WHY IT MATTERS: No gas system to clean means less maintenance in muddy blinds, and it cycles everything from light target loads to heavy 3.5″ magnums reliably.
• Optics-Ready Receiver with Included Red Dot — WHY IT MATTERS: You get a low-profile optic pre-mounted, saving you $100+ and eliminating the guesswork of aftermarket fitting.
• 28″ Vent-Rib Barrel — WHY IT MATTERS: The ideal balance for swing speed and pointing precision on crossing geese, with a raised rib for fast sight acquisition.
• 3.5″ Chamber — WHY IT MATTERS: Lets you run the hottest magnum loads for long-range waterfowl while still handling everyday 2 3/4″ shells for practice.
• Weather-Resistant Synthetic Stock — WHY IT MATTERS: Won’t warp or swell in rain, snow, or marsh conditions, so it stays reliable season after season.

Who It’s For

This shotgun is for the tech-savvy waterfowler who wants a modern, low-maintenance platform. If you’re upgrading from a pump or an older gas gun and want the simplicity of an inertia system with an optic ready to go, the MC312 Goose fits. It also appeals to early adopters who appreciate factory-installed red dots and the ability to shoot 3.5″ shells without a premium price tag.

Pros & Cons

• Pro: Inertia drive cycles reliably in cold weather—no gas ports to freeze or foul.
• Pro: Includes a red dot optic, cutting setup time and cost.
• Pro: Weighs just 6.8 lbs, making it easy to carry all day.
• Con: The synthetic stock has a utilitarian feel—if you prefer wood or adjustable combs, this might feel basic. But it’s built for function, not show.

Comparison: EAA MC312 Goose vs. Competitors

Feature	EAA MC312 Goose	Beretta A300 Ultima	Stoeger M3000
Action	Inertia-driven	Gas-operated	Inertia-driven
Chamber	3.5″	3″	3″
Optic Included	Yes (red dot)	No	No
Weight	6.8 lbs	7.2 lbs	6.7 lbs
Price	$624	$899	$549
Best For	Waterfowl with heavy loads	Light-recoil target shooting	Budget 3″ loads

FAQ

What shells does the MC312 Goose cycle reliably?

Per EAA specs, it runs 2 3/4″, 3″, and 3.5″ shells. The inertia system prefers heavier loads for reliable cycling, so light target loads under 1 oz may not cycle perfectly. Stick to 1 1/8 oz or heavier for best performance.

Is the included red dot ready to use out of the box?

Yes, it comes mounted and zeroed from the factory. You can adjust windage and elevation with a small screwdriver, but most shooters find it on target at 40 yards.

Does this shotgun come with choke tubes?

Yes, it includes three Beretta/Benelli Mobil-style choke tubes: improved cylinder, modified, and full.

Can I mount a different optic?

Yes, the receiver is drilled and tapped for standard red dot mounts. The included optic uses a common footprint, so swapping is straightforward.

Is the MC312 Goose suitable for left-handed shooters?

The inertia system is ambidextrous, but the safety is right-handed only. Lefties can adapt, but it’s not ideal for southpaws.

Why Buy the EAA MC312 Goose?

• ✅ Nationwide delivery (all 50 states)
• ✅ Ships 1-2 business days
• ✅ 30-day returns
• ✅ Secure checkout

Last updated: April 2026

Statistical note: Inertia-driven shotguns account for over 40% of the semi-auto waterfowl market, according to NSSF 2025 data, confirming the MC312 Goose is built on a proven platform.

Browse more in our Semi Auto Shotguns, Waterfowl Shotguns, and EAA Corp Shotguns categories.