Twenty-eight-inch walnut M2 Field. The most traditional-looking configuration of the M2 line — a 28-inch walnut semi-auto that would look at home in a European driven pheasant line or an American cornfield. Type: Shotgun Action: Semi-Automatic Caliber: 12 Gauge Capacity: 4 Year introduced: 2001, Italy Weight: 49.4 oz Overall length: 49.5" Status: Active Intended use: Hunting, Sport Shooting