The Scalarworks FUSE/04 35mm 1.57" Scope Mount is an ultra-lightweight, high-stiffness bolt-on optic mount specifically engineered to secure 35mm scopes—such as the Leupold Mark 5HD—onto AR platforms and tactical rifles. CNC-machined from 7075-T6 aluminum with 4140H steel hardware, it features an asymmetric 22% wider ring profile with interior grooves that optimize grip tension under extreme recoil while protecting the scope tube. Offering a 1.57-inch centerline height, it also integrates Scalarworks' proprietary LevelDrive mechanical leveling system to automatically and accurately square the crosshairs within seconds during installation.