No, the cummerbund is nice and tight. Plus they are threaded properly. If Molle pouches bounced around a lot I'm not sure the system would have taken off.
Spectre Gear universal Holster.
http://www.optactical.com/spgeuntathho.html
Or an Safariland 6004, but these can be slightly iffy with replica M3x units.
The above us a badass holster, I've owned enough holsters in the past to be able to say so. It's on sale too!