I like Sweets 7.62 for cleaning, and from an old post, a very important lesson for me:
"After the fluff and buff, I stumbled upon MILITEC-1 lube, (the oil), which I now swear by, so I dissasembled the piece again (along with everything else I owned) and treated it. You clean everything real well (like alcohol or degreaser), warm up the metal parts with a blow dryer, wipe them down good with Militec-1, let it set for a while, and wipe it down dry. That stuff works wonders. Even after the dry wipe, the surface is super slick and the piece functions so smooth, you won't believe it, and the dry surface doesn't attract dust and pocket lint. I had treated my carry knife (a CRKT M-16 12) with it as described, and then lost it for 10-12 months. When I found it, it was in the bottom of a cleaning kit (BIG TACKLE BOX) in which some blueing had spilled, (and that crap is corrosive). A bunch of the stuff in there was rusty, but not the knife, it was amazing."