Abstract: A vertical fore grip for a firearm with an integrated pressure switch pocket. The vertical fore grip includes a body with internal storage cavity, a mount adapted to secure a firearm, a pocket for a pressure switch on the perimeter of the body, and a cap to secure a pressure switch and waterproof the internal storage cavity. The mount has a groove for a firearm rail, at least one locking bar, and a spring for engaging the locking bar to a firearm rail.