My set-up was a little different. I'll post pics
IF my scope ever shows up. (order placed 2/1/09, still backordered)
Anyway, I used a Blackhawk single point sling and sewed in a Midwest Industries quick release swivel that I have mounted on the quad rail just behind the gas block. This allows me to carry over the shoulder or in front, and the single point allows easy transitions from strong to weak side.