Pen guns, a type of zip gun, have been utilized in many movies. It brings with it the intrigue of spies and espionage. You might remember the one used in US Marshals on the plane?
So what is a pen gun? First of all, it is equally as deadly as a handgun loaded with the same caliber of bullet. It holds one bullet.
This post was the fourth stop on the Assassination Blog Tour, and originally on Andy Holloman's blog here.