Following the war, the Swedish government purchased parts for 10 examples in secrecy for 200,000 Swedish kronor. The parts were shipped under the pretence of being boiler plates and agricultural equipment and then assembled in Sweden as the Stridsvagn m/21 (Strv m/21 for short), which was essentially an improved version of the LK II prototype. The Strv m/21 was powered by a sleeve valve engine located in the front, the driver and crew being in the rear.