Upgrade your AR platform with Daniel Defense's Vertical Fore-Grip. It comes outfitted with soft touch overmolding to provide a superior grip even in wet conditions. This grip attaches via 1913 picatinny rails, and the bottom of the grip can be unscrewed to access a watertight storage compartment for small parts/accessories. Note: This grip is not compatible with Key-Mod and M-LOK rail systems. Daniel Defense Tornado Grey Vertical Foregrip 21-067-05028-012