Now why didn't they have this when I got my Ruger Max. It automatically co-witnesses on the Ruger Max 9. and also needs no batteries. Never did put the Holson X2 507 on it cus the wife don't like optics. She may like this one since it has a large 15 MOA.

https://shopruger.com/Ruger-ReadyDot-Op ... info/90742

https://ruger-hosted.s3.amazonaws.com/e ... lSheet.pdf