Hard case for permanent storage?

[Armueller2001]

I'm thinking about keeping my AR15 in a Storm case for permanent storage but I heard something about the foam affecting your firearm... is it bad to leave guns in their cases for an extended period of time?

[hksw]

IMO, make sure the foam has never gotten wet, oil up your gun, throw in a desicant pack and it should be OK for years.