I have handled a lot of the bags before I bought one, including Bagmaster and such, and for the price you cannot beat the Uncle Mikes DELUXE Range bag at:
http://www.productwizard.com/unclemikes-52411.html
I also handled some factory logo bags from S&W, Glock, Ruger, they are all thin and wimpy and collapse when empty. The pro bags have some nice features but are ridiculously priced - for gods sake its a friggin BAG!
If you can find this Uncle Mikes bag in stock locally to actually see it, you wont believe it for this price. Most shops will ask $60 for it. Pictures dont do it justice. Maybe I will post some of my own.
* The bag simply stands up rigid all by itself. So rigid that with it empty and zipped closed, 200 rounds of 9mm ammo will just sit on top. The material feels like a heavy double wall with padding. I have not seen any cordura weave this heavy before - period. If your looking for lightweight, this bag's not for you. I bet it goes a couple of pounds empty.
* The zippers are just plain huge. Each zipper head or "tractor" is as big as my thumb and includes lock provisions. You wont be breaking a zipper.
* The shoulder strap buckles are almost 3" wide.
* It has a solid bottom insert to handle the weight of ammo.
* It has feet.
* Comes with a nice heavey padded gun rug.
* I like the "roll up" top strap that self sticks with velcro out of the way.
* I like the five 5" x 6" internal pockets with velcro closures. It does not have any little "magazine dedicated" pockets so you wont have wasted space if your not carrying magazines. Those look cool to sell bags, but you can keep em.
* Its' very roomy (for me).
Needless to say, I am thrilled.
If they only made laptop bags like this...