Enjoy improved weapon control and heat management with BLACKHAWK! Rail Mount Vertical Grips. Molded of high performance fiberglass-reinforced polymer, these vert grips feature 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. Proudly made in USA.