"You know, it's kind of hard to trust someone when you don't know who that someone really is."
The subject of this article has been deemed non-canon because it contradicts the established movie continuity of the Marvel Cinematic Universe, and thus should not be taken as a part of the "real" MCU world.
"I'd recognize a Horgan design anywhere. Sloppy and inefficient, but effective."
Iron Man[src]

The Proton Cannon was a powerful weapon which Bruno Horgan created for A.I.M..


Bruno Horgan was recruited by A.I.M. after he successfully created a device which cast beams capable of "melting" anything. He developed a giant proton cannon for them, as well as a force field with which to protect it.

Iron Man set out to put a stop to A.I.M. and located the cannon at one of their bases. Unable to damage it due to the force field, Stark attacked and destroyed three shield generators, which lowered the shield. He was then able to destroy the cannon.[1]