Nudge gun

The nudge gun is Institute tech, designed to make the target Transformer think differently. It carries two charges: the first sends a foreign thought into someone's head, and the second is a blank that erases incriminating knowledge from your head.

Fiction

IDW Generation 1 comics

The nudge guns are a tool used by Autobot Special Operations. Skids tried to use one to make Tyrest resign but the mad robot picked up the foreign thought. To avoid interrogation, Skids used the blank charge on himself. Arm the Lonely

Their existence is a secret: Brainstorm, an ex-Institute man, had no idea what the gun was and named it the "binary gun". Rules of Disengagement