I am using an LT-104 SPR mount atop my hunting AR-15 6.8 SPC on which I have a Trijicon AccuPoint 3-9X40.
Since I don't remove the scope, I utilized LaRue's VFZ mount hardware in lieu of the QD version. I'm very happy with the mount.
I did a fair amount of research before settling on the LT-104, and reviews indicated good results (secure mounting w/ return to zero) with the QD mount as well.
Don't know about sale availability.
XD-40 service, XD-9sc, member GeorgiaCarry.Org, National Rifle Association, Gun Owners of America, North American Hunting Club, Rocky Mountain Elk Foundation