New scope... Problem?

[A.M.]

I just got a new scope-- a Nikon 6-18x40...

I was putting the bigger knobs on it and I realize that the marks on the knob don't sync with the index marks on the scope. The 0, for example, is about 0.5mm off to the left.

Is this ok?

[Droppin Deuces]

It's fine. Doesn't have any effect on function.