The BLACKHAWK! Rail Mount Vertical Grip is molded of high-performance fiberglass-reinforced polymer and provides the user with improved weapon control and heat management. The vertical grip features redundant clamp screws for secure, reliable mounting and an adjustable fit to compensate for out-of-spec rails. The grip’s O-ring-sealed storage compartment is ideal for tools, batteries, or spare parts while two different caps (included) allow for custom length. Available in Black, Dark Earth or Olive Drab.