What spray paint did you use to touch up the stock? I was thinking of a Tremclad metal in Matte black? I have a few scratches to deal with as well.
I'm sure that will get the job done but I would say test it where it seems the least...
Good thing 4 us, matte black is easy to match !!!
I used simillar rust metal paint, I think it was RONA rust paint...
If it a small narrow scratch, use a fine brush and if its rubbed like mine take a Q-TIP !!!