Where can I find like new 30 rnd mag pouches?
Holds 3 30rnd'ers and goes on my web gear.

Step one, ask in the correct forum.  If you click on the "The Armory" in the board list at the top and scroll down you'll find a "Tactical Gear" forum that covers this stuff.

If you want the GI ones, there's plenty of places.  Start with [url]http://www.uscav.com[/url] and [url]http://www.actiongear.com[/url]  

There are other places that may be cheaper if you search around.

If you want better stuff, go to [url]http://www.lightfighter.com[/url]