History
The Overkill Device is a weapon designed by a sect of South Ossetian separatists that is capable of remotely activating other weapons using sonic vibrations.
The S.H.I.E.L.D. launched an operation to disable and acquire the weapon, sending in a covert two-man team consisting of Grant Ward and Leo Fitz.[1]
The Overkill Device was later used by the Hub agent loyal to Victoria to disable the Bus' turrets when she assumed Phil Coulson and his team were with Hydra.[2]
Fitz and Mack later modified the Overkill device to use against Carl Creel. Coulson slammed the device into the back of the Absorbing Man, causing him to petrify.[3]