20 MOA built-in for precision long range adjustments. - Lightweight skeletonized aluminum body and caps to reduce overall weight without sacrificing reliability. - #8 Torx style fasteners with steel threaded inserts to prevent stripping. - Extended design provides over 2 inches of forward cantilever for additional eye relief. - Places your optic at the Ideal Height for MSR and similar platforms. - Dual 1/2 tactical nut attachment 65 in/lb. of torque is recommended.