Use the Fix It Sticks Scope Jack to quickly and easily level your scope to your NATO or Pic rail. Using the level is easy: simply mount the Scope Jack to your rifle's NATO or Pic rail, under your scope. Turn the Scope Jack drive handle (the Scope Jack works with any 1/4" driver) until the lifting arm engages with the flat section of the scope under its turrets. Once the scope is level, maintain pressure to keep scope level while tightening your ring screws. In cases of minimal clearance, it may be necessary to remove the thumb screw and clamp, then slide the Scope Jack onto the rail from the side and reassemble. Works on any scope with a flat section under the turrets The NATO/Pic rail must be accessible under the optic Will not work with one piece mountsNote: Needs a minimum of 1/4" clearance between rail and scope bottom