When outdoors I carry mine in one of these. I really like this system. If you leave one corner of the main compartment slightly unzipped it is easy to grab the corner with my left hand and simply pull to unzip while I reach into the bag with my right hand to draw the gun. Plus it is a great system to carry a few other essentials. I clip my gps and phone to the outside webbing. Everything is quickly accessible unlike a fanny pack or day pack.
There are 2 compartments, if anyone asks about it simply unzip the smaller forward compartment to show them your other gear, no one will ever know you're carrying. It works with a day or back pack if you need to carry more gear.
It carries a lot of weight pretty well. I've been using mine during turkey season to carry extra calls, gloves and camo headnet along with my G19 and other gear. Has been working great
http://www.hillpeoplegear.com/Products/CategoryID/1
I have the one in the photo. They make a smaller, more compact version and a lighter weight runners pack made with lighter materials and without the webbing
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