How about this:
or
Tactical Nylon 'Drop Leg' Universal 3/6 Mag Pouch
Built tough and priced competitively, our premium three compartment 'drop leg' mag pouch can hold 6 AR-15/M-16 (or similar) 30 rnd. mags, or 3 AK-47/AK-74/VZ-58 30 rnd. mags, or 3 M-14/FN-FAL/HK-91/G3/etc. 20 rnd. magazines. Camo.
http://www.marstar.ca/ac-nylon/mag-pouches.shtm
