Mostly functional, sometimes not - Weaver Polar Caps

I have quite a few of these caps and about 75% of the time they work perfectly. The rest of the time mostly 2 things happen. Either the black trim ring pops off or the button that opens the cover doesn't work. They fit well if you measure your scope carefully and be sure to order the correct size. Even with the problems, I think they are a better choice than the other brands available.
Pros: Easy to install
Cons: Sometimes parts pop off or the opening button breaks

This review was written in the old system and had content requirements that are different than reviews written today.