I'm new to the forum and new also to M1 carbines. I have wanted one for years and am just now waiting for my Inland M1 from CMP to arrive. It will be another month or so. I am slowly buying all the stuff I need to go with it. I bought some USGI (I think) magazines thru Gunbroker. They have some corrosion that needs to be removed. I figure that if there is rust on the outside, there is probably some inside the magazines as well. I hope some of you with more experience can offer advice. How do you avoid getting oil/solvents, etc. inside the mags where it would be tough to get it out - don't want oil on ammo, of course!