AKA: 9A33BM3;9M33M3;Gecko;SA-8B. Status: Operational 1980. Payload: 40 kg (88 lb). Gross mass: 170 kg (370 lb). Height: 3.10 m (10.10 ft). Diameter: 0.21 m (0.68 ft).
In the mid-1970's a need was identified for a new version of Osa capable of shooting down the NATO helicopters that threatened Warsaw Pact tank formations. For this role a 9A33BM3 vehicle was developed that could fire a mixture of 9M33M3 radio-guided and wire-guided missiles from a single vehicle. In 1980, the modernised Osa-AKM 9K33M3 was accepted by the PVO and surface forces and began serial production at the Izhevsk Electromechanical Works Minradioprom (9A33BM3 missile) and at the Kirov Machinery Works named for the 20th Party Conference Minaviaprom (9M33M3 missile), where all Osa vehicles and their missiles were built.
Maximum target speed 2160 kph. Maximum speed: 2450km/hr. 10 m minimum altitude.