Dover GA-1112 Autogun

Dover GA-1112 Autogun is a "man-portable" MG chambered for 12mm Long Caseless ammunition. A double-barreled weapon, the GA-1112 feeds from an underside-mounted drum. Weighing about 15kg (empty), it comes with a sling for support; an integral smartgun rig compensates for the hip-firing position. This weapon must be squeeze-cocked to start the motor (one combat round), and then it can be fired. The ultimate man-portable area-suppression weapon for cyborgs! For an additional 650eb, you can get a vehicle-mounting kit: swivel-clamp mounting, 1200-round ammo tank, and direct-from-motor power feed.

Source

 * Solo of Fortune 2, pg.36
 * Blackhand's Street Weapons, pg.33