The Accu-Tac Sling Stud Rail Adapter provides a precision-engineered solution for mounting your Accu-Tac bipod directly to your rifle's sling stud. Precision CNC machining and mil-spec hard anodize coating ensure durability and reliability in demanding conditions. This adapter seamlessly integrates with the Accu-Tac bipod system, eliminating the need for additional mounting solutions. Complete installation hardware is included, allowing you to achieve a secure, low-profile setup with minimal effort.This stud mount adapter is designed to utilize the standard. Sling stud on your rifle stock. 1. Mount the threaded post over the sling stud. 2: Slide 1/8 x 3/4 steel pin thru hole to lock with sling stud (stud cylinder inside diameter is .450" or 29/64") 3: Slip rail over the threaded post and pin. 4: Screw on the 7/8 aluminum nut to lock and secure assembly. Do not over tighten.