Alright so I'm looking into a molle vest,I did research and I'm more confused then before. So I got some basic questions. Can I put molle mag pouches almost anywhere on a molle vest if I have space? If so do they make molle pouches for m4 mags galil mags and m9 mags? Finally, do I have to put say, mre pouches or hydration pouches etc. on a specific part of the vest? Any help is appreciated.