One of my AR's has a 56mm scope because it is my dedicated coyote rifle that gets shot at night a lot. I have a tiny pair of 10X15mm Zeiss binoculars that work great in full light, are light and easy to carry but after twilight my 10X56 monsters (Huge and heavy) are far superior.Around here, we call those pavement princess trucks... However, I've seen many AR type rifles with tiny scopes on them too and wonder how they are going to group well at even 100 yards. I look through my spotting scope and also see what you see. 5-6" groups at 100 yards... So what does this tell you???