Dr. Doom developed this gun to leave the Thing powerless - as an impact from it would change him back to his human form, temporarily. In a different target, it would only cause damage; and, in another member of the Fantastic Four, it would reduce, but not remove, his or her powers.
The gun was built in the first times of the Fantastic Four. Since then, the Thing has mutated so much that the gun would not be effective unless Doom modifies it to increase the intensity.
- 2 Appearances of Cosmic-Beam Gun
- Minor Appearances of Cosmic-Beam Gun
- Media Cosmic-Beam Gun was Mentioned in
- 1 Images featuring Cosmic-Beam Gun
- Item Gallery: Cosmic-Beam Gun