Of all the Metal Airsoft Guns, the most mind-blowing is the gatling gun. This is a gun so powerful that no plastic or polymer, no matter how resilient, would stand a chance in you-know-where. They don't call it The Devil's Gun for nothing!
I've heard it said that the gatling gun chews up non-metallic BBs like oatmeal for breakfast. You might as well just smash them under your boot and pour them straight into the barrel. That's the kind of power we're talking about here.
King of the Metal Airsoft Guns
Most Airsoft guns have a bit of metal in them, just to make them operational. That's why you can't get a "plastic" gun through a metal detector at the airport. But fully metal Airsoft guns are rare, because of the extreme similarities to real guns.
The gatling gun, on the other hand, isn't the sort of gun you could sneak anywhere. It's like trying to smuggle an elephant under your jacket. The king of the metal Airsoft guns is loud and proud (which is why, in most games, it is not allowed).
