The shotgun's dual tubular magazines makes it appealing to law enforcement and 3-Gun shooters, where fast reloading is important. It has a three-position lever which dictate which tube can be loaded or drawn from when the gun is in action.
Learn more by watching this American Rifleman TV segment hosted by Joe Kurtenbach.
For further reading on the KSG, please enjoy the following articles:
Gun of the Week: Kel-Tec KSG