I recommend skipping the removal of the forearm screws and magazine tubes. They CAN be tricky (on some rifles) to replace and sometimes are slightly angled and require alternate equal turns of the screw.
Advise using your thumb and index finger of your free hand to hold the screw driver at the screw to eliminate chance of boogering your finish.
If stainless, one of the 3 grits of 3M pads can remove most light scratches following the "grain" of the surface. Finish off any handling marks with Mother's Polish or equivalent. Also great for removing gall/wear marks on the bolt.
