Yup... It's pretty easy...
You'll want to start with something like 600 grit emory cloth, and move up to 1500 or possibly higher.
t really depends what the finish looks like, if it's mirror polished, matte finished, etc...
You may end up needing to do the entire slide flat on both sides so that the polishing blends.
1500 will provide a dull mirrored appearance, that you can see your reflection in, but it's not the "Bright Mirror Polished" finish. That may require some jeweler's rouge, or ultra fine polishing compound to buff, and polish the surface.
Good luck...