I'm putting together a slabside upper and an A1 upper with triangualr hand-guards. I have a couple of sets of hand-guards that are decent which I plan to use. But I also have a beat-up pair that I've been things about sanding smooth, etc.
If I cleaned the current finish well (say ending at 400 or 600 grit), what would be the next steps?
TIA,
Marv_45