This is a conversion set to model the 90 mm-armed export version of Scorpion, based on the AFV Club kit.
For the export market Alvis fitted Scorpion with a Belgian-designed 90 mm Cockerill gun. Firing high efficiency ammunition, it offered performance very close to 105 mm guns fitted to heavier vehicles. The turret of the Scorpion 90 was designated the AC90 and was almost identical to that fitted to the basic vehicle.
The 90 mm gun had an elevation of +30° and a depression of -8°, almost the same as the basic Scorpion. The turret is equipped with fully stabilised day/night (thermal) gunner’s sight with laser rangefinder, and a ballistic computer for firing on the move and at moving targets. Scorpion 90 carried 34 main ammunition rounds (normal Scorpion carried 40 rounds of 76 mm ammunition).
Early in 1995, Indonesia placed a contract with Alvis for the supply of Scorpion 90s and Stormer APCs. Late in 1996, Alvis Vehicles then won a second contract for the supply of about 50 members of the Scorpion family. They are believed to have operated 90 Scorpions plus other members of the CVR(T) family.