Lightweight optics deserve lightweight mounts and the Low Drag Mounts (LDM) from Scalarworks are the best I have used. Their mounts use a clever ratcheting wheel and detent system instead of a bulky lever to create a quick -detach, return-to-zero mount with a weight comparable to the lightest non-QD mounts available.
The LDM/MRO is now available. It features the same telescoping clamp, radically skeletonized design, and updated 7075-T6 construction as the Aimpoint Micro version of the LDM. The mounts weigh in at just 1.11 oz or 1.15 oz for the absolute and lower 1/3 co-witness models respectively.