The Tavor 7 Overwatch top rail raises the rail height up approximately 1/2″ over the OEM rail.  This makes the height of the optics rail over the stock the exact same as that of an AR-15, and allows for comfortably mounting and using all of the standard optics and iron sights available in the AR-15 focused U.S. market. The Tavor 7 Overwatch Full Length Top Rail rail features 35 picatinny slots and spans the full length of the top of the receiver and forend just like the OEM top rail.  The Top Rail will work with all OEM and Manticore Arms Tavor 7 forends.