The Kishock Harpoon Gun I is a sniper rifle.
An Alliance captain on her fifth tour of the Terminus Systems once said that seeing a Kishock was the easiest way to tell if she was being attacked by batarian mercenaries or slavers, since "no bastard with a Kishock means to take you alive." This powerful sniper rifle fires a harpoon-like spike that causes massive internal bleeding, and its miniaturized disruptors will also destroy synthetics. The rifle’s biggest drawback is that it must be reloaded after every shot, but for those with steady aim and good timing, one shot is enough.
The Kishock Harpoon Gun is a multiplayer-only weapon so there is no blueprint for the Kishock Harpoon Gun I.