LaRue had some pretty low 30mm QD rings not sure if they still have them?
I really like Seekins high rings made for the AR15 family puts your eyeball right where it naturally needs to go
off both collapsible stocks and my MOE rifle stock.....no cheek scrunching needed.
The Seekins however are not QD
I doubt (but I could be wrong) you are going to want anything lower than the Seekins AR15 ring's height as your head wont be behind the Aimpoint & you will have to scrunch down on your cheek weld....it aint natural. :)
I just checked it out with some medium TPS rings and some low LaRue and found the resultant cheek weld way to low for me....the height of the Seekins is right where it
should be...
In fact I am going to leave my Aimpoint in the Seekins ring as I can mount the optic pretty far back which helps with my astigmatism....I am guessing for the Aimpoint
I am guessing the Aeroprecision mount is the lightest going and is certainly reasonably priced as well.
Aero Precision Aimpoint Mount