Wehrmacht prototype self-propelled gun and 'weapon carrier' based on a lengthened Pz.Kpfw 38(t) chassis and mounting a massive PaK 44 heavy anti-tank gun. Vehicle has detailed hull and running gear, injection-molded workable link track, driver's compartment interior, separate hatches and on-vehicle equipment, pivoting firing spades, 128mm rounds (x6) and optional rear fender configurations. Weapon features well detailed gun and cradle, multi-part breech, intricate control mechanisms, gun shields, brass equilibrator cylinders and optional turned metal gun barrel. Also includes photo-etch parts (shell casing end caps, fine vehicle and weapon accents, muzzle brake detail and optional perforated baffle). Decals and color painting guide for a single conjectural German waffentrager - includes barrel kill ring markings and national insignia.