The M-BRACE Scope Mounts are an evolution of ARC's M10 Scope Rings, designed with engineering precision, suitable for serious riflemen.
When mounting, be aware of potential interference with the bolt handle on a 90-degree bolt rotation action; this can be avoided by adjusting the mount position on the picatinny rail.
Specific torque specifications are provided for secure installation: 55 in-lbs for scope clamp and rail mount screws, and 30 in-lbs for the bubble level screw.