Hook up with that single point sling you've had your eye on with the help of the ProMag Single Point Dual Loop Sling Adapter, perfectly replacing your gun's old, collapsible 4 or 6 position butt stock retaining plate. Made of carbon steel with a nice black-oxide finish, the adapter is designed with dual loops that use a hook-type fastener to attach your single point sling to your gun. Once you're finished hooking your sling to the ProMag adapter, you'll have the option of comfortably hanging your gun from either your left- or right-hand side with ease. Size: Universal.