GrovTec US Tri-Base Buffer Tube Sling Mount Black. Installs with no dis-assembly required. All three bases are full rotation. Allen key tool and mounting screws included. Specifications for GrovTec US Tri-Base Buffer Tube Sling Mount: Manufacturer: GrovTec US Color: Black Fabric/Material: 6061-T6 Aluminum Finish: Type III Hard Coat Anodized Condition: New Features of GrovTec US Tri-Base Buffer Tube Sling Mount No disassembly of firearm required for installation. Fits Mil-spec buffer tubes. 3 Sling mounting positions. Package Contents: GrovTec US Tri-Base Buffer Tube Sling Mount GrovTec US GTSW312: Tri-Base Buffer Tube Sling Mount Black