The GrovTec Swivel Adapter allows the use of a sling with traditional detachable swivels on a firearm with hook style sling studs. Easily attach or detach the sling by connecting the adaptor to the existing detachable swivel, then clipping it into the sling hook on your firearm. The heavy duty adaptor provides a secure connection. Now the same sling can be used on a variety of weapon types and switched back and forth with ease. 100% MAde In USA