One of the challenges when mounting a scope is making sure the reticle is level with the action. This tool can make the process easier.

The Reticle Leveler can be printed in a variety of colors. Lighter shades can be marked with a Sharpie for higher visibility. I recommend not doing what I did, and wait until the model isn't still warm from printing to reduce bleed.

Printed upright to minimize supports. Use support blockers on the three holes on each upright.

Additional elements are a rubber band large enough to wrap around the action, and a (nominally) 4mm square rod to connect the two pieces.

Enjoy