User blog comment:1999bug/Gatling Gun!?/@comment-3152191-20110614224002/@comment-3496744-20110615021959

It's a Chain Gun! Not a Gatling Gun. ''A chain gun has a single barrel while a Gatling gun has several rotating barrels. It is a common error to refer to Gatling guns as chain guns, particularly in connection with entertainment such as video games (notably the popular first-person shooter Doom).'' Though it has barrels, they are not intended for shooting. It shoots through the middle, which rotates.