So, if I understand correctly....
this can be used to fire multiple taser rounds at high speed, which will presumably mean that the poor sod on the receiving end will probably get multiple high-voltage, incapacitating shocks one after the other - which will probably end up incapacitating their heart, permanently! Wouldn't a bullet be simpler?
The whole point about tasers (according to the marketing spin) is that they are meant to be used with care, in specific, well thought out situations, to non-lethally disable armed individuals who pose a threat to others. Spraying them at high speed in the general direction of a crowd of peaceful demonstrators is not what the adverts suggest they'll be used for (but I bet they will be!)