The Vibragun is Jerry Cornelius' second weapon after the Needle Gun. It uses focused hypersonics to literally vibrate or "shake" it's victims apart. It can also be used to vibrate holes through obstacles. Additionally, if the beam is focused very tightly, the Vibragun can have a laser-like cauterizing effect.
Like the Needle Gun, the Vibragun is possibly a manifestation of the Black Sword.