Heres a cool eBay find from 2001. This mini gun is the only one to my knowledge to have survived and came from Australia where the film was made. This piece was purchased when I found a Chris Lambert jumpsuit and then asked if the seller had any other items….an intelligent move.
This is the fibreglass hero weapon, as there is space inside for a machine pistol and space for the cartridges to eject. There is also a partial piece of the bullet feeding belt, although some of it has been cut off.