The P-11A is a shoulder-launched surface-to-air missile produced by China's Aerospace Science and Industry Corporation (CASIC) since the early 2000s. Its production line is part of the company’s Triad range, which includes a variety of anti-aircraft weapons, including air defense missile systems, anti-aircraft guns, and man-portable surface-to-air missiles such as the P-11A. The P-11A is a lightweight and compact shoulder-launched missile and has been widely exported for use by armed forces seeking a cost-effective air defense system. It features an electronically-controlled propulsion system, an active radar seeker, and an infrared digital control system. It can intercept a variety of aerial targets, including helicopters, fixed-wing aircraft, unmanned aerial vehicles, and anti-radiation missiles.