I was looking for some pouches for my handguns when I go to the range. The least expensive were about $8-15. I found at Home Depot Husky 12" Document pouch which has a pleated bottom, a separator, and a web loop with a grommet for only $3.58. They are perfect, gun on one side, and mags on the other side of the separator. There are a lot of different sized pouches also for organizing your range bag that have a mesh window so you can see whats inside.
http://www.homedepot.com/p/Husky-12-in- ... ment+pouch