The smoothest functioning QD lever on the market Superior clamping that will not damage or coin the rail surface Extremely smooth in operation with a multi-facetted adjustment nut to get the exact tension required by the operator Fully adjustable with no tools required, can be adjusted to fit rails not machined to mil-spec tolerances Weighs only 2.1 oz. Precision machined for optimum performance and repeatability 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 Damage to lever or components from failure to read instructions will VOID warranty.