Length: 787 mm
Barrel length: 525 mm.
Weight unloaded : 4.57 kg
Capacity : 10 rounds in removable revolver-type drum magazine
Rate of fire: 240 rounds per minute
The Jackhammer is a gas operated, fully automatic only shotgun. The feed system consists of the 10 shot, revolver type detachable cylinders, named "Ammo Cassette". The cassette may have 10 chambers for more or less conventional 12 gauge shotgun shells.