This is a checklist to solve easy-to-fix issues, please read each part carefully

ONLY USE SCREWS INCLUDED WITH THE OPTIC - DO NOT USE ANY OTHER SCREWS

Zeroing Checklist

1. Experience: We do not know your level of experience. If you are a beginner or this is your first optic, please let us know.

2. Zero distance: Zero at 25 yards or farther. Your red dot will not work properly when shooting at longer distances if zeroed at 15, 10, or 5 yards. Minimum zero distance is 25 yards for the best accuracy at all reasonable distances.

3. Iron sights: Under no circumstances slave red dots to iron sights, or use iron-sight position to align the red dot or judge loss of zero. These methods are inaccurate.

4. Mount check: Shine a flashlight from the opposite side of the optic. If any light passes underneath, or if the optic is loose in any way, correct the mounting.

5. Laser bore-sight test: If you have a laser bore sight, load it at 25 yards and (without cycling the slide or barrel) physically rotate or tap the optic with a rubber mallet. Note whether the red dot moves during the test or afterward.  
   - If you do not have a laser bore sight, we recommend getting one. Be aware that the laser will shift position if removed and replaced.

6. Fasteners: Install the optic with one drop of 242 Loctite on each screw and torque to at least 15 lb-in. Allow at least one hour for curing.

7. Ammunition changes: Switching loads can cause minor shifts in zero. From a bench rest, re-check zero to eliminate shooter movement; even small trigger input can shift point of impact.

If you are having issues please let us know.