Spec Ops Goblin is a weapon.
This article uses info from Watch Dogs wiki
It is an extremely useful weapon for stealth missions thanks to the fire rate, accuracy, and lack of noise. If firing from an adequate distance, enemies can actually take hits to the torso without being alerted, as they have no idea as to the origin of the rounds. When combined with the focus and auto-weapons expert skill perks, it becomes a force to be reckoned with.
Third weapon by hackers to use. Seven rifles have been fired.