Not being condescending. Sorry for you that not beating around the bush, getting to the point and being the only person that has posted that's told him what he needs to know to get the correct part offends you. Well, not really.
Your right though. He did learn something, he learned that scopes don't have dust covers. Now he can call Bushnell back and request the correct part and Bushnell will know what he is needing. No thanks necessary, happy to help.
But thanks for tremendous help that you offered up.