This short vertical grip is made for Rifles with KeyMod mounting systems, easy assembly with no tools required. This grip is compact so it wont get in the way of natural movement. Also the grip has a small storage compartment by opening the bottom. Installation Instructions: - To unlock, force the serrated slide-latch upward, until it clears the lower portion of the grip body. - After it clears, rotate the lower grip body, counter-clockwise, a minimum of two rotations. - Install the grip forward, into the chosen KeyMod interface location and with the desired grip angle direction, until the grip travels no further - Twist the lower grip section clockwise until the serrated slide-latch drops into the locked position. - Ensure the grip is firmly locked into the KeyMod interface.