I got to try out the ICS M3 grease gun last weekend and loving it. But how the heck are you supposed to carry spare mags?? These things are huge and AK or Thompson pouches don't seem to cut it. Has anyone discovered a way to lug these things around other than tossing them in a sack. I've been told this is what was historically done in WW2 until specific pouches were made post war.