KRISS USA G3 Folding Stock Black Aluminum/Polymer Ambidextrous 3 Positions. This three-position collapsible stock features a 7075-aluminum folding hinge with a steel locking point and button. It attaches firmly to any 1913 Picatinny rail using two M5 screws with compatibility optimized for the Gen 3 Vector. The stock is fully ambidextrous allowing you to easily switch the button between the top or bottom of the hinge and the left or right side. The collapsible button is also reversible by removing one screw and flipping the parts to the opposite side. Specifications for KRISS USA G3 Folding Stock: Manufacturer: KRISS USA Gun Type: Rifle Gun Make: KRISS Color: Black Hand: Ambidextrous Length: 10.7500 in Condition: New Stock/Brace Material: Polymer Aluminum Dimensions: 2.15 X 6.00 X 10.75 in Frame Color: Black Package Contents: Kriss Usa Kriss G3 Folding Stock Black Kriss Usa Kriss G3 Folding Stock Black