In March 1941, the Rheinmetall-Borsig company ordered sixteen captured B1 Bis tanks to be converted into SPGs. Work did not start until the end of 1941 due to the lack of operational tanks. The vehicles entered service in 1942.
This is a Premium vehicle. Premium vehicles earn more credits and experience per battle and provide a range of other bonuses.
Characteristics are specified for a vehicle with crew members trained to 100%.