AK-9 is a Russian fully automatic assault rifle chambered for the 9×39mm subsonic cartridge. It is one of the latest models of the popular Kalashnikov rifle series. It is based on the "100" series Kalashnikov assault rifles.
In 2006, Russian authorities wanted the Izhmash factory to design a rifle with Kalashnikov properties, but suitable to be used in special operations. Factory manager Vladimir Grodetsky stated that the rifle was forspecial forces for anti-terrorist operations. Alexei Dragunov, one of the designers of AK-9, says "It shoots virtually without a sound and it can go through a bullet-proof vest". AK-9 is also lighter than earlier Kalashnikov models.