After the successive experiments with turretless vehicles on the KV chassis under the nomenclature of KV-7 and KV-14, the SU-152 finally entered production in February of 1943. Because of the problems with ventilating the fumes from the enormous 152,4mm ML-20 howitzer, additional ventilation domes were installed beginning in September. Production of the “beast killer,” as this vehicle is commonly known, then switched over to the IS-series chassis in December.
The above photos show the two different models, in unpainted grey resin, and painted. In both photos, the early-mid production model is on the left, the late production model is on the right.