Scotty, nobody was making fun of you. Some others don't seem to get it, is all.
Bustr, I would add to your comments for anybody else taking inspiration from them, that the P-40B was refitted with a reflector from an early time point, so that the majority in service had them. The difference is the IL2 served most of the war without one and only received a later modification at war's end. So arguing the P-40B has a gunsight is silly, because that's how it flew and fought, but arguing for a gunsight on the IL2 (IMO) is worse because that's not how it flew and not how it fought.
P.S. For those that want it..... why? It works well enough as-is!