The Type 91 surface-to-air missile is a Japanese man-portable surface-to-air missile system. Its appearance is similar to the US-made FIM-92 Stinger anti-aircraft missile. It was created in order to replace its stock of American-made Stinger MANPADS, since the Type 91 has a better guidance system, which consist of both light and infrared system options. The Stinger, on the other hand, uses a passive infrared homing guidance system.
In the ranks of the JSDF, the Type 91 is colloquially known as Hand Arrow. The Type 91 is sometimes mistaken as a Japanese-made version of the Stinger. The Type 91 is currently exclusively used by the JSDF and has not been exported overseas to date due to previous interpretations of post-war constitutional restrictions and the laws arising from them.
The Type 91 is officially treated as a 4th-generation MANPAD system.