Karl-Great 040/041 was a World War II German self-propelled siege mortar (Morser) designed and built by Rheinmetall. Gun had to be accompanied by a crane, a two-piece heavy transport set of railcars, and several modified tanks to carry shells. Seven guns were built, six of which saw combat between 1941 and 1945. Kit consist of 430+ parts, 15 sprues, (4) section roadbeds, railway track in 500mm length, metal shaft, spring, markings.