So I finally received my optics mounting plate from Walther today. It came as just a envelope with a plate in it. No hardware was included. Is this normal? Am I supposed to use the same hardware that the plate cover uses? I know to torque to 15 inch pound. My holosun 507 v2 came with hardware but that is to mount the optic to the plate. Do I need to go to C&H and order hardware from them ? Any help or guidance from anyone that has already mounted theirs would be greatly appreciated.