I feel the pain
traditional rimfire glass will fail over time and a lot of shots in a springer. The recoil is completely different in a springer than a rimfire. Over time the reticle will either become loose, break, or the adjustments will not hold-which has been my case with almost every brand I've used.
You will spend money for good glass on a springer! As much or more than the rifle itself.
Springers are hard on glass, more specifically hard on the reticles and mounts. Sometimes on mine I will find it shooting off center by a millimeter or two and reach down & tighten the mount screws, and it is back right where it was. That is, shooting through the same pellet hole over and over and over again. It gets boring after a while so I'll tape a piece of paper to a stick, and hang it over the top of my target box so it's facing me endways. Then I'll just cut pieces of the paper off starting at the bottom and working my way up. When I was younger I'd shoot the ends of .22 shells and make them go off. That was pretty stupid.
Look at UTG, I've had the best luck with them. But I also spent way more on it than I should have. Sightron ain't bad either. The thing to look out for is to make sure it's rated for use on a springer air rifle. If the packaging or advertising doesn't specify, it's probably not.