The M1014 Joint Service Combat Shotgun is the M4 Super 90 as issued to the United States Marine Corps. It features a telescoping stock, Picatinny rail, and extended 6-round magazine. The most combat-tested shotgun in US military history since Vietnam. Type: Shotgun Action: Semi-Automatic Caliber: 12 Gauge Capacity: 6 Year introduced: 1998, Italy Weight: 89.6 oz Overall length: 40" Status: Discontinued Military use: Yes Intended use: Military