Rheinmetall

Rhein Metall (Rhein Metall) is a famous German manufacturer of weapon accessories for combat vehicles and defense products, and its representative works include the main gun of armored vehicles and self-propelled guns such as Leopard 2, M1A1, M1A2, etc., in which the L55 smoothbore gun beat many rivals to become the main gun of the U.S. Army's M1A1 in service to this day.