Go to American Rifle Company, go to the listing for their rings, scroll down and they have a nice description of how to stack Pennie’s to determine needed ring height and it’s of course applicable to any brand ring. Just cross ref his ring heights to the closest of your chose brand.
Here’s the link…just keep scrolling down and the relevant section is titled w big red font.
You will want no lower than 1.35" up to 1.50". Your smaller objective lens will allow you to go a little lower than standard (1.50") for an AR platform. If you had 56mm, you would need the full 1.50".