Personal Defense Weapons fill a niche. They’re a compact weapon that packs a bigger punch than a pistol, especially in close quarters situations (clearing rooms, the back of a crowded APC, etc). The standard response for gun makers: make something that uses a pistol caliber due to the low recoil and the compact design. But that recipe results in a relatively underpowered weapon that requires proprietary magazines. FN went another way: The FN SCAR PDW.
