元ネタこれかwiki

The Special Armor Plate (SAP) is a classified composite armor used for the K1 tanks crafted by the United States using identical materials and technologies used on the armor of M1 Abrams.

Its specifications are strictly restricted for public release and limit South Koreans from accessing the armor. The SAP is applied on the turret and the front of the hull.

Meanwhile, the side of the hull is protected with additional RHA plates, which provide protection to all types of 115 mm ammunition fired from T-62 in the hands of North Korea at the time of the development.[7]