You can try these.
http://www.evike.com/product_info.php?products_id=37666
Very slight wobble, if at all. I had no feed issues.
Bonus is that they are designed to have no conflict with standard mag pouches as well.
Magpul PTS Announces and Shows Their G36 PMAG at Shot Show 2012 - YouTube
Hope that helps.
Callixtus