The GG&G AR-15 Sling Thing Rear Sling Attachment for collapsible stocks is an excellent accessory that makes all day marches or day long competitions easier to deal with. It's now generally accepted that tactical slings should be mounted on the side of the weapon. GG&G manufactures Rear Sling Things that provide this mounting position to fill that specific mission requirement. Manufactured from tough 6061 T6 billet aluminum alloy, the body of the Sling Things are Type III hard-coat anodized in a matte black combat finish. Lighten your load with the GG&G AR-15 Sling Thing Rear Sling Attachment. Manufacturer Number: GGG-1010 GG&G AR-15 Sling Thing Rear Sling Attachment 6061 T6 Billet Aluminum Type III Hard Coat Anodized Matte Black Lightweight, durable, easy-to-install and inexpensive sling mount 1.25" Sling Swivel Made in the USA Fits: AR-15 Rifles with Collapsible Stocks