Buying BSA Optics can be a real roll of the dice, might be great, maybe not, lots of shooter swear by them, others swear at them, they've earned some names just as Tasco has, but the bright side is their CS is great from all reports at RFC. I've got a couple, a red dot that fogged up on me the first time I used in in damp weather, the other is an airgun scope that's performed just fine for several years on a heavy spring gun. Eye relief is critical on it, but the glass is clear and bright, and it's held zero just fine.
Tim