As to what you can see in the image. First you wouldn’t think it is a deadly weapon. Right? Later, you’ll know what i mean. That thing that man is holding at is a slick little MagPul FMG9 (or, FMG-9) a.k.a. "Glock in a Box" prototype folding 9mm Parabellum (9x19mm NATO ) mini / micro-submachine gun (SMG) that utilizes a Glock 17 slide and any factory Glock 9mm magazine, including 30-33-round Glock 18 mags. "FMG" would seem to stand for "Folding Machine Gun".
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.
The MagPul FMG 9 9mm subgun essentially shows in microcosm all of MagPul’s creativity and product design and development strengths (including ergonomics and "usernomics")–and, yes, perhaps even a desire to entertain–in one little lethal foldable SMG package. No matter how one feels about mini-subguns or micro-subguns, one must acknowledge the rapid-design & development skill the FMG9 showcases. You really have to see the FMG9 folding/foldable subgun being opened, closed, and handled to fully appreciate it.
See it in action. Watch the video below.