EAA Girsan MC312 | 12 Gauge 28″ Barrel | MFG# 390145

The EAA Girsan MC312 is an inertia-driven 12 gauge semi-automatic shotgun built with a synthetic stock and forend and a 28″ vent-rib barrel. It accepts 2 3/4″, 3″, and 3.5″ shells, and is supplied with screw-in choke tubes and an optics-ready receiver. The MC312 is positioned for field use and sporting applications where a robust, easy-to-maintain shotgun is desired.

Intended applications include field hunting — from upland work to larger waterfowl loads — and clay/sporting target shooting. The shotgun’s features emphasize durability, serviceability, and straightforward handling for those uses.

Product Specifications

• The model is MC312.
• The manufacturer is listed as Girsan Firearms / European American Armory (EAA).
• The MFG part number is 390145.
• The UPC is 741566903472.
• The action type is Semi-Auto (inertia-driven).
• The gauge is 12 Gauge.
• The chamber accepts 3.5-inch shells.
• The barrel length is 28 inches with a vent rib profile.
• The magazine capacity is 5+1.
• The stock and forend are made from synthetic material in black.
• The receiver is optics-ready and includes an integrated Picatinny rail.
• The shotgun includes five screw-in choke tubes.
• The sighting system features a fiber optic front sight.
• The overall length is 50 inches and the unloaded weight is approximately 6.94 pounds.
• The length of pull is 14.25 inches and the finish is listed as blued/matte black.

Compactly specified for practical field use, the MC312 balances a full-size barrel with a synthetic stock and modest weight to remain manageable over a long day afield. Its inertia system and included choke set make it adaptable for a range of shots and loads encountered in hunting and sporting-clays environments.

Owners commonly praise the MC312 for its reliability under extended use and for delivering strong value relative to its feature set.

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