 Complete the following phrase:  The final additions to the M24 family were the M2447 rifle. These were produced by reworking existing prewar Serbian Model 24 Mausers and then refurbished with new parts at the Zastava Arms formally Kragujevac Arsenal plant, which was at that time under the control of the postwar communist government. The 47 of the M-2447 indicated the beginning of the rebuild program of 1947. The rebuild program lasted into the early 1950s alongside new production of M48 rifles. M24 series rifles were used by the Royal Yugoslav Army and by nearly all sides during World War II in 