The ISU-152K was the first modernised version of the ISU-152, introduced in 1956. The new variant used the much more reliable engine of the new T-54 medium tank, including a heating and cooling system. There was also additional armour on the casemate roof and the gun mantlet, and many other internal components were changed. The most notable difference, however, was the addition of a third hatch and commander's cupola.
Ordering the small variant will give you a single vehicle.
Ordering the medium variant will give you two vehicles.
Ordering the large variant will give you five vehicles.
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