Check Out This Remote-Control Helicopter That Fires a Handgun
This seems like a terrible idea, and according to the FAA, it's illegal. Some guy built a remote-control helicopter that fires a handgun. It looks like a normal quadcopter, but with a gun attached to the front.
This video came out last week and was invesitgated by the Conneticut police, now it's being looked at by the FAA.