Steel sling swivel mount allows slings equipped with pushbutton QD swivels to attach to the Magpul MOE Rifle and Fixed Carbine (FCS) buttstocks as well as SGA Shotgun Stock. Easy-to-install because it fastens securely to mounting points already molded into both sides of the stock. Mfg: Magpul SPECS: Heavy-duty phosphate steel, black. Fits Magpul MOE Rifle and Fixed Carbine (FCS) butttocks and SGA shotgun stock. Mounting hardware included. Swivels not included.