Battle Arms Development AR-15 M-lok QD Sling Mount Aluminum Black. It allows the user to customize where their sling will be attached for optimum comfort and operation. Rounded edges reduce the chances of snags or hang-ups. Specifications for Battle Arms Development AR-15 M-lok QD Sling Mount Aluminum: Manufacturer: Battle Arms Development Color: Black Length: 2.1 in Gun Type: Rifle Gun Model: AR-15 Width: 3 in Fabric/Material: Aluminum Mount Type: M-LOK Dimensions: 0.85 X 3.00 X 2.10 in Package Contents: Battle Arms Development Battle Arms Mlok Qd Sling Mount Aluminum Black Battle Arms Development BADMLOKQD: AR-15 M-lok QD Sling Mount Aluminum Black