Smoothest function QD lever on the market Superior clamping that will not damage or coin the rail surface Smooth in operation with a multi-facetted adjustment nut to get the exact tension required by the operator Fully adjustable with no tools required and can be adjusted to fit rails not machined to mil-spec tolerances Weight: 2.9 oz. Precision machined for optimum return to zero performance and reliability Hard coat anodized 6061 aluminum for a lifetime of service Patented QD lever by Elite Defense 100% made in the U.S.A. with MI Lifetime Warranty