Based on the lengthened chassis of the Vk. 30.01, which was developed by Henschel in the late 1930s, the Panzerselbstfahrlafette für 12.8 cm K. 40 was created. The 12.8 cm K. 40 was derived from the 12.8 cm Flak 40.
Rheinmetall-Borsig finished the two trial vehicles until early 1942. Both vehicles were tested at the front as part of the Panzerjäger-Abteilung (Sfl.) 52 where both vehicles were lost in the area of Stalingrad in winter 1942/43..
