Magpul Prototype FMG-9 Submachine Gun

MagPul FMG-9 prototype folding 9mm Parabellum (9×19mm NATO ) mini / micro-submachine gun utilizes a Glock 17 slide and any factory Glock 9mm magazine, including 30-33-round Glock 18 mags. In it’s closed position, MagPul FMG-9 is designed to look something like a portable radio, and incorporates a detachable tactical white light.

Extract from Defense Review