The Briefcase gun is specially designed for covert assassinations when the shooter must remain concealed before, during, and after the hit. With the silencer, the user can fire at his target without drawing unwanted attention to himself.
The Briefcase gun is just that, a gun inside of a specially designed briefcase. The gun was fired by pulling a string attached to the trigger which was fed through several pulleys and out the top of the briefcase to a ring near the handle of the briefcase. Different models of firearms could be used, with a Walther PP with a silencer used on the show.
This weapon was tested against the 's . The briefcase gun killed a target with a lethal shot to the liver, while the camera gun achieved an instant kill by driving a .22 bullet through the left nostril of a gel head. The edge was given to the briefcase gun, since it contained a 9mm PPK: a heavier caliber and longer range weapon that could be fired multiple times.
While carrying a briefcase gun will make owners feel like James Bond, the device’s practicality is up for debate. Off body nature of carry makes it susceptible for stealing in close quarters combat scenarios. The guns will be difficult to aim given that users cannot sight them properly due to encapsulation in the briefcase. Also, once the MP5K or SP89 have been emptied, the briefcase makes for awkward and time consuming reloads.