Warne's 1-Piece QD X-SKEL cantilever mount features patent pending dual quick detach levers and is 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 Warne QD -X-SKEL give you a generous forward cantilever for modern scopes, while reducing weight with its skeletonized design, and Return-to-Zero performance that Warne is known for.Patent pending dual quick detach levers for fast installation and removalLightweight, skeletonized aluminum body and caps to reduce overall weight without sacrificing reliability#8 Torx style fasteners with steel threaded inserts to prevent strippingExtended design provides over 2 inches of forward cantilever for additional eye reliefPlaces the optic at the IDEAL HEIGHT for MSR and similar style platforms