If its the one that I think mine had no grip screw. It did come with everything else to attach it. You need parts from your current top cover to mount that one. On my lower the hand guard required a ton of material removal to fit on my vz58. The pin they give you for the lower is super soft and my pin punch sunk into it. I just put the normal pin back in. I need to find a place for a long grip screw.