Russian Assault Howitzer SU-122i (on StuG III C/D) . The SU-122i w) designed by the Russian industry on STuG Ausf. C/D, which were captured in some numbers by the Soviet army. The production was halted after only 8 vehicles has been built, the alternate designation was SU-122(A). The vehicle had the 122mm Field Howitzer M-30 in a new superstructure, which was welded onto the original STuG III C/D hull. The conversion kit contains new superstructure, complete 122mm howitzer with mount, hatch lids, and small parts. Design for the Tamiya stug kit.