KRISS USA G3 QD Rear Sling Mount Black Aluminum. This solid piece easily attaches to the rear of your Vector via the Picatinny rail with two M5-.80mm screws. To install simply slide the mount down the rail remove the screws and reattach them to secure the mount in place. Once torqued down the mount holds firmly ensuring your sling stays in position. Specifications for KRISS USA G3 QD Rear Sling Mount: Manufacturer: KRISS USA Color: Black Fabric/Material: Aluminum Length: 6 in Dimensions: 1.55 X 2.05 X 6.00 in Width: 2.05 in Frame Color: Black Package Contents: Kriss Usa Kriss G3 Qd Rear Sling Mount Black Kriss Usa Kriss G3 Qd Rear Sling Mount Black