Warne 1-Piece MSR cantilever mounts are constructed from 6061 T6 aluminum for a lightweight and rigid foundation. Steel threaded inserts ensure steel on steel contact between all threaded interfaces, and MSR Ideal Height helps the shooter maintain a proper cheek weld and shooting position with any optic on flat top guns The X-SKEL Mount gives additional cantilever while reducing weight with its skeletonized design, still offering Return-to-Zero scope mount capability that Warne is known for. 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 the optic at the IDEAL HEIGHT for MSR and similar style platforms Dual 1/2" tactical nut attachments, 65 in/lb of torque recommended