The M-BRACE Scope Mount is an evolution of ARC's M10 Scope Rings, designed with engineering focus as opposed to simpler gadgets.
There may be interference with the bolt handle when mounted to the far aft recoil slot on a 90 degree bolt rotation action, which can be resolved by adjusting the mount's position.
Specific torque specifications are provided for the scope clamp and rail mount screws (55 in-lbs) and for the bubble level screw (30 in-lbs).