Back in 1990, NATO wanted a special firearm … a personal defense weapon (PDW). This PDW was to be the modern equivalent of the M1 Carbine. Unlike the carbine, however, they wanted something that’d penetrate the soon-to-be-issued Soviet “superarmor”, something that all Warsaw Pact troops would soon be wearing when they swarmed across the Iron Curtain.
The 5.7x28mm came to us in the P90, an SMG-sized firearm familiar to all fans of the Stargate TV show. Its companion, the PS90, came with a 16-inch barrel and no selector switch. In due time, FN offered a 5.7x28mm option in the FiveseveN, a pistol chambered in the cartridge. The ammunition, however, wasn’t the anti-Soviet loading that NATO could get, but various FMJ and polymer-tipped bullets that could be had here.
So, the…