High Quality Content by WIKIPEDIA articles! The PPS (Russian: ППС - "Пистолет-пулемёт Судаева" or "Pistolet-pulemjot Sudaeva", in English: "Sudaev`s submachine-gun") was a family of Soviet submachine guns chambered in 7.62x25mm Tokarev, developed by Alexei Sudayev as a low-cost personal defense weapon for reconnaissance units, vehicle crews and support service personnel.