This M-LOK sling swivel stud bipod adapter provides a sling stud for Harris-style bipods to mount. M-LOK bipod mount onto two M-LOK slots on your hand guard and it is perfect for adding sling swivel stud to your handguards. It also works with bipods that use a sling stud mount. The Sling Swivel stud rotates freely with your sling. Mounting tool is included. Mount is made from black hard anodized aluminum. construction.