TacFire MLOK Sling Mount W/ QD Sling Swivel Black. The TacFire MLOK Sling Mount provides enough space for two sling swivels so there's no interference with the way you hold or carry the weapon. The MLOK Sling Swivel's ballistic has a hardness test of ten thousandths of an inch so you don't have to worry about it breaking in the middle of your sling. This really is an all-in-one piece of gun carry hardware. If you're looking to switch out a part on your gun or completely replace an existing sling swivel then the TacFire MLOK Sling Swivel and Adapter Base do the job. No gunsmithing is required. Just a simple hand tightening of a standard MLOK sling swivel and you're ready to go. Specifications for TacFire MLOK Sling Mount W/ QD Sling Swivel: Manufacturer: TacFire Color: Black Country of Origin: USA Package Contents: TacFire MLOK Sling Mount W/ QD Sling Swivel TacFire MAR124-QD: MLOK Sling Mount W/ QD Sling Swivel Black