High Quality Content by WIKIPEDIA articles! The PP-19 Bizon ("Bison") is a 9mm submachine gun developed in the early 1990s at Izhmash by a team of engineers headed by Victor Kalashnikov (son of famed AK-47 designer Mikhail Kalashnikov). Alexi Dragunov, youngest son of Evgeny Dragunov (responsible for the SVD sniper rifle), was also a member of the design team.