An odd question, I know

So a few years ago I bought a m77 MK II. To not make this too lengthy, the previous owner painted the entire rifle in a camo pattern. The price was right so I just took it in stride. Well I am to the point where I'd like to get it back to the original condition. I recently purchased a factory synthetic stock from Ruger. My question is what would be the best way to remove the paint from barrel, floorplate and bolt handle? Obviously I don't want to harm the finish, which is blued. After hunting with it and carrying it some of the paint has chipped off, and the finish looks fine underneath. Any tips? Thanks in advance.

Excellent, thank you.

Not to sound dumb, but do you have a particular brand you prefer? Or just any aerosol powered oven cleaner will work.

If I remember from the previous owner, it was a krylon brand spray paint.

Thanks for all the info guys. I now know to avoid using acid based
Cleaners. I think I'll try OOOO steel wool and some bore solvent first. If that doesn't work too well, I'll try the acetone. Thanks again!