The Stability ARCA Rail mounts to any fore-end utilizing the Mlok Interface. The overall length of the rail is 10.25″ in length with the 1.5″ width that gives the wide flat surface used to stabilize platforms for precision shooting. The rail has been hollowed to bring the weight down to 4.5 ounces. It has been hollowed out with slots to reduce the weight but still retain the strength where needed…. the best of both worlds. The design of the rail allows for direct interface of the Stability XTA (ARCA) Bipod Model from the Stability Bipod Product Line. No other interface attachment is required! Get on target fast, fast, and fast…. deploy and adjust with a single hand while actively aiming!… And send it!