14. The Magpul FMG-9 is a submachine gun that folds up into a rectangular block the size of a laptop battery. It's mostly made of a lightweight polymer rather than metal. 13. It's not technically ...

The submachine gun is a small and ... The MP5 has become famous for being reliable and versatile throughout most military, law enforcement, and special forces units worldwide.

The result is a stealth-oriented Submachine Gun that performs exceptionally well in medium-range engagements.