I'm a bit of a gear-whore/snob so don't mind paying more for the good stuff. Just picked up the Haley Strategic INCOG sub gun bag for my truck gun. 10.5" with Law folder. DD rear right, A2 FSP. 29" LOA, 21" folded. 30rd Gen3 Magpul.
I kept going between a true rifle bag (MOLLE/PALS, pockets, etc.) and something low profile (tool/tennis racket/duffle bag) but neither was perfect. One had too much stuff I'd never utilize and the other had nothing expect a pocket or two.
The HSP INCOG has best of both, still low-pro but with features that work/are needed to carry a firearm. Plenty of room left if I'm going to the range. The expanding zippered pocket can hold a lot and is perfect for a small chest rig/mag carrier.
The MOLLE pouch is from Condor. The tie-downs from WRB in Texas. HSP dual mag pouch on lid. I added shock cord and cord lock for extra retention.