Ultimate Training Munitions had prototypes of their new 5.56 training magazine on display today. The new mags feature a center channel that’s sized for the neck of their training rounds. UTM’s shorter, thinner tipped rounds will feed fine, but a live 5.56 round will be too big to fit past that center channel. So, if you see a blue magazine in a weapon you’ll know that it’s loaded with one of UTM’s three training rounds; marking round, silent blank, or loud blank.
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