The Midwest Industries Short QD Optic Mount will work with Atlas bipod! 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 Hole spacing from center to center 1.100 Overall length 1.600 Weighs only 1.5 oz. Precision machined for optimum return to zero performance and reliability Hard coat anodized 6061 alumi Mfg: Midwest Industries, Inc.