http://en.wikipedia.org/wiki/9M117_Bastion The Bastion is a Russian 100MM muzzle launched antitank rocket.....The 100 mm round resembles a normal 100 mm
anti-tank round, and is loaded and fired in the same fashion. The round uses a reduced
explosive charge to launch the projectile out of the barrel of the gun at around 400 to 500 m/s. After leaving the
barrel of the
gun, a small cover falls away from the window on the rear of the missile. The
rocket motor ignites 1.5 seconds after firing the missile, and it burns for 6 seconds.
The projectiles use
laser guidance. A cone of laser light divided into sectors is projected from the launching tank/vehicle/gun, each sector having a different frequency or modulation. The missile has a small window in the rear with a sensor to detect the modulation of the
light. Using this
modulation, the missile steers itself, maintaining its position in the cone. The laser beam-riding guidance system is less spacious than a radio command one, and cheaper and simpler than semi-active laser guidance. The missile is also not prone to radio or optical jamming.[SUP]
[1][/SUP] On the other hand, a target has to be tracked by laser sight all the time, and the system can not be used on the move.[SUP]
[3][/SUP]
The missile's flight time to 4,000 meters is approximately 12 seconds. After 26 to 41 seconds the missile self-destructs.