9M117 Bastion

The 9M117 Bastion is a Soviet laser beam-riding anti-tank guided missile of 100 mm calibre that is fired from the barrel of a gun instead of from a separate launcher. As the 9K116 Bastion system, with the NATO reporting name AT-10 Stabber, it is launched from the main gun of the T-55 tank and of the BMP-3 infantry fighting vehicle, and the related Kastet round is fired from the MT-12 anti-tank gun. Development began in the late 1970s at the KBP Instrument Design Bureau in Tula, and the missile entered service in 1983. The gunner keeps the sight on the target while the missile rides a modulated laser beam whose six-metre guidance zone is zoomed to stay the same size throughout the flight. Effective range is 100 to 4,000 metres, with 5,500 metres for the 9M117M tandem-warhead version, which penetrates roughly 550 to 600 millimetres of armour. GlobalSecurity.org lists Tulamashzavod as manufacturer and describes the system as in production and in service with Russian forces and some other countries.