I just bought one of these: https://www.crosman.com/optics/scope...-mm-riflescope
It's a first focal plane scope which means the reticle will magnify along with the target as you change the magnification. I think 3-9X is plenty enough magnification out to 100 yards. A 40mm objective should gather plenty enough light during the day. The parallax adjustment goes from 10 yards to infinity which means that there would be negligible parallax problems down to 5 yards. The reticle is glass and the lenses are fully multicoated. Fogproof, shockproof, nitrogen purged.
MSRP is $199, but I found some NIB for under $100.