I prefer to use the standard molle magazine pouches for an ar15 style mag and the I use my own bungie cord on the top latches to make room for the extended mags I use. As for a belt a simple LCV or load carrying vest should suffice as a mounting point for your molle ar15 mag pouches.
Alex R.
Two, belt-mounted, AR-sized magazine carriers that I like are the ITW Fastmag and the Blade-Tec Revolution.
ITW Fastmag without tabs for belt mount (tabs for use with Molle):
![]()