So I got around to cleaning with some Murphy’s and scrubbing with rag. Making a difference. Still a lot of dirt and junk in the wood. I was hesitant to to start really taking it apart, but finally realized it couldn’t be avoided.

I put a few drops of oil on all screws and let it sit for a while. That worked, or it wasn’t even necessary, as all came out surprisingly easily. I have removed the upper and lower bands, front and rear hand guards, the trigger and guard, butt plate on the stock. I was going to take the stock off, but there was something plugging the hole. Took a picture and it looks like a rag. Haven’t done anything more yet, bc I am also stuck on removing the barrel from the lower fore end stock. I did some looking around and apparently that is a rivet holding the rear end to the receiver? Tie plate and rivet. What do I do here?

Any help on the stamps would be wonderful.

Attached some pics for reference.

Thanks!!