The K1A1 tank is the standard battle tank of the South Korean Army. Its design is derived from the US M1 tank, but it uses a Diesel engine instead of the thirsty gas turbine of the M1. It also has an advanced suspension to cope with the hilly terrain of Korea.
Wikipedia has more information about the original.
This item consists of a model with the separate turret and cannon on a sprue. Fine parts cannot be 3D-printed, so the machine guns on the turret are not included.