Universal Mounting Adaptor, Standard Model, fits Uncle Mike's - type Q.D. sling stud. Fits majority of hunting rifles on market fitted with a contoured stock and Q.D. sling swivel stud. Allows you to mount a bipod without modifying your gun. A freely-rotating Q.D. stud is mounted on the bottom of the adapter for mounting your sling. Mounts to any Uncle Mike's - Type Q.D. sling swivel stud. Allows Canting tilt.