Yugoslavia, then a new nation, not only bought M24 rifles from FN, but also had FN install the machinery and tooling to make the rifle at Kragujevac. Production in Yugoslavia did not get underway until after WWII, with the M48. While the M48 is not a bad rifle, it is (IMHO) not as well made as the Belgian-made M24.
In spite of Mitchell's Mausers statements, the M48 was not German, was not made on German equipment, was not used by the German army, was not used in WWII, has little historical value, and is not a K.98k. Other than that their ads were scrupulously honest.
Jim