I picked up a surplus A1 upper from a guy several years back. It came with a RRA BCG. I picked up a NDS blem lower, NDS charging handle, A1 grip, grey mag release button, and I think possibly the trigger guard. I think the selector may have been a grey parkerized part I got as well because it does not have a tick mark. The buffer tube was an black anodized tube that a friend finding in Grey Cerakote. I treated the takedown pins and other visible parts in the LPK with naval jelly to turn them grey. The LPK was from DPMS (right after Sandy Hook, parts were scarce). I think the C MP CHROME BORE markings on the barrel date the upper to 1974 or later.
I'd like to buy the correct parts, or at least the right color parts. Can you guys give me some pointers or things I need to improve on?