I bought a used BSA Airsporter S in about 1981, it had a Tasco 4x40WA on it. The WA is just a mask that makes the sight picture wider than it is high, so not very useful, but the sight served me well for many years and now my son uses the Airsporter and Tasco for ratting with. It's still flawless.

I'd like a 6x50 with side PA, haven't seen one yet.