Enjoy improved weapon control and heat management with the Blackhawk Rail Mount Vertical Grip. Molded of high performance fiberglass-reinforced polymer. This 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 the two different caps (included) allow for custom length. Made in the USA.