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 for special 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.
The AK-9 is based on the so-called "hundred series" of Kalashnikov assault rifles, such as AK-104, but with certain improvements. It features same tried and proven gas operated, rotary bolt action and same "Kalashnikov-style" controls including reciprocating bolt handle, safety/fire selector lever and overall layout with side-folding polymer buttstock. Polymer furniture is improved with addition of the accessory Picatinny rails on the bottom of the forend, and the left side of receiver is fitted with Russian-standard scope rail. Barrel can be fitted with specially designed quick-detach silencer (sound moderator), which is especially effective with 9x39 subsonic ammunition. Magazine is made of black polymer, holds 20 rounds of ammunition and appears to be of proprietary design, not compatible with other (competing) weapons of the same caliber, which are already in service with Russian military and law enforcement.
The AK-9 appears to be a competitor to the AS Val and 9A-91, which have already seen Russian military and police service.