Wood or synthetic?
Camo dipped, blued or parkerized?
if wood, save yourself a LOT of time and just get a new set of camo dipped or wood from ebay.
you can refinish them ( I have done several) but it is very time consuming if you want to do it right. I have the step by stem process to give you a High gloss finish using only tung oil that is hard as nails when your done.
the rest is just the labor of steel wool and scrubbing. if any springs have rust on them REPLACE them for safety reasons.
"A free people ought to be armed" George Washington 1790
‘For those who would give up essential liberty to purchase a little temporary safety, deserve neither Liberty nor safety.’ —Ben Franklin.”