No doubt most of us have the odd scope with a couple of slight cosmetic marks which do nothing to the performance of the scope but give it that used look, especially if it has a visible scratch or wear round the adjustment knobs?

Has anyone found a way/kit/business that can cost effectively remove/cover/deal with these marks?

Most scopes are the usual matt black finish, but I appreciate there are other finishes out there as well.

Thanks

James