This ambidextrous vertical grip is a simple lightweight and cost-effective device which secures tightly to any M-Lok mounting system. The low profile vertical grip design provides a positive hand hold in a small package. Adequately sized to allow the hand to take control of the front of the rifle but not large enough to get in the way. - Requires 1/8 Hex Allen Wrench to install. - Specifications - 6061-T6 Aluminum - 2.95 Tall - Weight 2.24 oz. - Hardcoat Anodized matte black to Military Specifications or better - Made in the USA.