In April 2011, the first modernized MLRS II and M31 GMLRS rocket were handed over to the German Army's Artillery School in Idar Oberstein.
於2011年4月，首個現代化的多管火箭炮II及M31 GMLRS火箭被運到於伊達爾-奧伯施泰因的德國軍校。