KRISS USA, Inc Stock, Folding Stock, Fits Kriss Vector Gen II 2017 Models, Black KVA-FSBL30 KRISS USA's Vector Ambidextrous Folding Stock is designed for the Vector Gen II Post-2017 models. The stock is constructed of steel" aluminum" and advanced polymer composites. The KRISS Vector Ambidextrous Folding Stock secures to the upper receiver with a push button hinge that will fold to the right or left. The stock features two QD sling swivel mounts on the left and right side" as well as a sling loop towards the rear. In addition to folding" this stock is also telescopic" adjusting to three different length of pull positions.