Standard Manufacturing Company DP-12, Pump Action Shotgun, 12 Gauge, 3 Chamber, 18.875 Double Barrel, Olive Drab Green, 7+7 Rounds DP12ODG Standard Manufacturing Company has raised the bar with this extraordinary shotgun that truly is one of kind that was manufactured in a state of the art facility. The innovative design and guaranteed functionality is well ahead of its time. Extreme detail has been a priority from conception through production of these double barrel repeater shotguns.