Another vote for this product. I have one mounted via MOLLE to the outside of my light (poncho, woobie, food, water, first aid) overnight pack that I usually carry while out in the desert. It's never dropped a round even when pushing through tight brush or climbing sandstone cliffs.
I also have a USMC-surplus war belt with an M110 double magazine pouch. Turns out that with a little bit of foam to adjust the pouch depth, it nicely holds two ten-round 7600 magazines. That belt also holds my IFAK, radio, and a small utility pouch with a headlamp, lighter, map, compass, emergency marker panel, and a couple other things.
