Ak74 mags fit very snugly in single M4 mag pouches -- too much so, they snag terribly on the way out. In a regular double mag pouch they'll fit (I can put 2 in), but if you plan on closing the lid/cover flap on them, make sure you use the Eagle style ones with velcro and adjustable sizing since the AK74 mags are longer than M4 mags.
Personally I'd stick to a MOLLE setup and just get AK mag pouches instead of M4 ones. Pantac has some in a variety of sizes/colors, for relatively cheap, if budget is a concern.
Also bear in mind that the Ak74 mags will fit into pouches those horrible metal AK47 ones will not.
Last edited by Drake; March 5th, 2009 at 11:41..