This is the most versatile ammo pouch I have found, you can put just about any kind of mags in here or just loose ammunition. It also make a great utility pouch for just about any small items you wish to carry. And FORGET about it coming loose from your belt, those ALICE clips are worth their weight in GOLD, MOLLE and regular belt loop equipment is put to SHAME by these!
While rothco has some clean looking pouches I have seen them for cheaper elsewhere, so if you dont mind the grenade carriers being a little frayed get a used pouch.(still cant find a use for these things EXCEPT grenades)