The SSM mounts directly to your rifle sling swivel stud. One end of the SSM can be mounted to any SwitcherooA(R) compatible BOG-PODA(R). The other end is a sling swivel stud, allowing you to mount your sling while the SSM is attached. Once the SSM is mounted to a BOG-PODA(R) it will stay mounted even if you pick up your rifle. Now you can move your rifle, POD attached, for quick target re-acquisition. Mfg: Bog Gear