Originally Posted by
DaveHH
for cleaning after shooting, I use Hoppes #9. For a preservative oil I use Army PL-S general purpose weapons oil light. An equivalent commercial oil would be 3 in 1 oil. this is for rubbing into the metal with a rag or patch. For lubricating oil I use the Army teflon oil. it comes in a green squirt bottle and after shaking it has a white color. That is the teflon mixed with the oil. a few years ago Sarco sold quart cans of this stuff German made so I have enough for 5 lifetimes. This lubricant was developed for the M-16 rifle and works well. For grease, I use almost anything. Lubriplate is good any old axle grease is fine. Grease is oil that stays where it is placed. I see no useful purpose in putting expensive lubricants on firearms when they are cleaned and maintained so often. I would also go out on a limb and say that the rifle doesn't know or care what type of oil or grease you use. Going further out on that limb, I would not use WD 40 on any firearm I valued. I did use it for years when I had one shotgun and one rifle. It will be better than nothing at all, but as a genuine lubricant it falls short. I do use it as a sliding lubricant on old Pinball machines and it is good for that. By design it is a preservative coating.