Not plastic, plastic body styling over an alloy body, albeit not tne best quality in materials or manufacture, plastic trigger though, and screw heads that usually looked like they were made from plastic after attack from the average owner.But the ion was plastic was it not? The Nano is currently machined - not cast! Yes it seems crazy but the bodies are all machined at present. The grip is a cast but of course an alloy.
Give the Ion its due, it has proved what a good platform it was, introduced so many players to the world of machine guns and spawned a whole industry of aftermarket parts makers.