German-built assault gun based on the proven Panzer III medium tank chassis, final production variant adapted for Finnish service. Kit has new tool parts allowing your choice of early configuration (April 1944) or late type (July 1944) - includes appliqué side armor plate, optional concrete block and log armor, armored visor, 7.62mm DT machine gun with shield, commander figure (torso only), gun barrel, spare track links and rear stowage box. Kit also has detailed suspension with vinyl track lengths plus separate hatches and on-vehicle equipment. Decals and painting guide for 4 vehicles: Ps.531-12, Ps.531-19, Ps.531-20 an Ps.531-22.