The former chief designer Hugo Schmeisser developed and built the first assault rifle at C.G. Haenel in the 1940s. With the civilian CR 223, Haenel is now continuing the long tradition of automatic and semi-automatic weapons. MK556 is a fully automatic assault rifle developed and built in Suhl according to military requirements. High compatibility with the standards of this rifle category and indirect gas drive with adjustable gas take-off for silencer use are just two of the decisive details that speak for the rifle. The MK556 has a cold forged, chrome plated barrel, has been tested in all climates and is OTB (over the beach) certified. The MK556 was the surprise winner price/performance of the first decision to tender for the new 2021 assault rifle for the German armed forces, after the vast majority of bidders in the international tender had withdrawn from the competition.