The E.M.P. Gun is a piece of equipment used in the television series Leverage
Constructed by Alec Hardison. the device makes its first appearance in "The Boost Job" The E.M.P. Gun is a portable device that fires an focused E.M.P.(Electromagnetic Pulse) blast that can disable Electronics in it's firing range. When it's used primarily on vehicles the waves from the gun are capable of stopping any electrics from running for thirty minutes.
Upon seeing it being demonstrated on a limo driver's car during The Ho Ho Ho Job, Nate was impressed by the EMP gun, calling it "nice".
The E.M.P. Canon has been referenced to, twice, with separate inside references: