Part of these mechanically out of use machines was reused in a fixed position on the Maginot line. The operation consisted in ridding the tank of all its mechanical elements to keep only the body and the turret, then to embed it in a concrete block leaving only the turret protruding, the hull serving as a room for the men. .

In the case of the machine gun tank, the original Hotchkiss machine gun was replaced by a Reibel MAC 31 machine gun.