Super Compatibility: Extended clamp opening and closing stroke, compatible with the vast majority of Arca-Swiss rails and quick release plates (38mm to 40mm width); Bar shaped mounting hole design, with a hole spacing range of 0.76"-1.20" (19.3mm-30.7mm), maximizes compatibility with bipods with different mounting hole spacings Versatile Application: AB45 clamp support both Harris sling stud Style and Accu-shot Atlas bipod (with two mounting holes), MK80 1.5'' size for Arca Swiss and RRS standard dovetail Q.R clamps With Attached Adapter: It can be mounted on most tripod ball heads, or other devices with UNC 3/8” screw Metal Sturdy Construction: High precision CNC machined 6061 T6 Aluminum alloy with hard coat anodized, fantastic build quality and smooth operation Lightweight Design: The ARCA Rail Bipod Clamp emphasizes excellent lightweight design, maximizing weight reduction without compromising strength, making it ideal for outdoor enthusiasts and professional shooters alike Lock Block Precision Machining: MK80 is Stainless steel precision machined lock block that guarantees secure attachment. This sturdy lock block not only provides stability but also allows for quick release and mounting, streamlining workflow Compatibility with Mlok system: Expertly crafted for ultimate compatibility with the Mlok system, ensuring seamless integration with setup WEYLLAN Arca Swiss Bipod Adapter for Harris/Atlas Bipod, Compatible Arca-Swiss Rails and Q.R Plates, Lightweight Clamp with Mlok Rail Stable Connection Bipod, Mount on Tripod Ball Head