In it’s closed position, while you’re carrying it around, the MagPul FMG9 is designed to look something like a portable radio, and incorporates a detachable tactical white light.
The FMG9 mini-SMG is very slickly designed and looks like a fully-developed product, which is particularly impressive considering that, according to our understanding at present, the MagPul team developed the FMG9 on short notice specifically for the SHOT Show 2008.
Via MagPul Industries Corp. (a.k.a. MagPul Military Industries Corp.)
PO Box 17697
Longmont, Colorado 80308-0697

Airport security would be the same. It’s just a Glock inside, so metal detector would go off and it would show up as a handgun shape in the x-ray machine.
Also, since it’s a Glock inside, it’s likely not a sub “machine gun” but semi-auto. I’m guessing, but could be wrong on that one.
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Canada.
BobABowie yaaaalll