Folding stock variant of the M3 Convertible for vehicle and aircraft storage. The skeleton folding stock reduces overall length significantly while retaining the dual semi-auto/pump function. NFA regulated in civilian hands as a short-barreled shotgun. Type: Shotgun Action: Semi-Automatic Caliber: 12 Gauge Capacity: 5 Year introduced: 1992, Italy Weight: 86 oz Overall length: 41" Status: Discontinued Military use: Yes Intended use: Military, Tactical