XTS Front-2-Back Folding Vertical Grip Black XTS 309. Specifications for XTS Front-2-Back Folding Vertical Grip: Manufacturer: XTS Gun Make: AR Platform Fabric/Material: Polymer Condition: New Gun Rail: Picatinny Features of XTS Front-2-Back Folding Vertical Grip High Quality Polymer Structure New Grenade-Design 90 degree tilt Front-2-Back Storage Compartment for items such as Batteries Mounts to Picatinny Rails Package Contents: XTS Front-2-Back Folding Vertical Grip XTS XTS 309: Front-2-Back Folding Vertical Grip Black