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. 6061-T6 Aluminum. 2.95" Tall. Weight 2.24 oz.. Hardcoat Anodized matte black to Military Specifications or better. Made in the USA.