9mm on ar-15 - Primary Arms The SLx 1x MicroPrism Red Dot Sight

Ok I made the mistake to buy the 9mm (I was thinking had to do with the glass size …) and now shoot it on a 10“ barrel ar-15. It’s very clear and the rising options are great. The symbols are sharp, and even well visible when turned off. I start zeroing it out and because of the barrel length start getting the numbers for the 9mm scope I have. I bet they are not much different as I shoot up to 200yds. If you add the honeycomb anti glare the rubber elastic protector provided does not fit snuggly but works.