FIM-92 Stinger

The FIM-92 Stinger is a man portable infra-red homing surface-to-air missile developed in the United States and used by all the U.S. armed services, with whom it entered service in 1981. The basic Stinger missile has to date been responsible for 270 confirmed kills of aircraft.

It is manufactured by Raytheon Missile Systems and also under license by EADS in Germany. Raytheon designates the missile as a MANPADS (Man-Portable Air-Defense System). It is used by the military of the United States and by 29 other countries. Around 70,000 missiles have been produced.

cost of one unit $38,000

http://en.wikipedia.org/wiki/FIM-92_Stinger