Merlin Airsoft News posts information about the Odin Innovations Magazine Speedloader from ZShot... "The Odin Innovations M12 speed loader is a multiple mag speedloader that can load your M4 magazines. The speedloader holds about 1100 rounds and has a clutch in it, so when the magazine is full it will not attempt to jam extra bbs into the magazine. Price is expected to be near the $80 mark and has an expected released of sometime mid summer 2015."