A silly question... I remember reading stories about Garand's being dipped in cosmoline and put away for storage after WWII. Ditto for eggs and bacon, but you'd have to ask my dad about the food at Parris Island.
Does anyone have experience with vacuum sealing? Specifically, AK-style rifles. Could one, theoretically, shove an AK through a food-grade vacuum sealer and leave said rifle in the trunk of their car or (under the seat of) a truck?