Here's a candidate......
http://www.natchezss.com/Optics.cfm?contentID=productDetail&brand=OS&prodID=OSAR4X32&prodTitle=BSA%20%20Air%20Rifle%20Scope%204x32%20AO%20Target%20TurretsThis is my favorite 4x32 scope. I have quite a few of these and I love them. Natchez sells them at a great price, they have "AO", they have nice clear optics and I've never had one fail on me. I have a couple of these on some of my cheap chinese shooters, including a B3 and they work great. I like using standard 4x32 scopes on a shooter like a B3-1, I think they go well with the lower power of the rifle and they give you all the magnification you need.
I'm sure others will chime in with their suggestions but this is mine

Jeff