XTS Side-2-Side Folding Vertical Grip Black XTS 308. Specifications for XTS Side-2-Side Folding Vertical Grip: Manufacturer: XTS Color: Black Gun Make: AR Platform Material: Polymer Fabric/Material: Durable Polymer Gun Rail: Picatinny Features of XTS Side-2-Side Folding Vertical Grip 5 lock-in positions 90 degree range left to right Storage compartment Easy lock on feature onto picatinny rail Package Contents: XTS Side-2-Side Folding Vertical Grip XTS XTS 308: Side-2-Side Folding Vertical Grip Black