Cosmoline is a petroleum based rust preventative. Heat, like a heat gun, but not too crazy will soften it up, and brake cleaner will remove it. Remove the grips as the brake cleaner may hurt them. Soaking it will take care of most of it. WD-40 will help clean it up as well. Nice gun, by the way.
picked up 100 rounds of non-corrosive. I'm glad the ammo panic has not affected us, yet... can get plenty of surplus ammo for about $350 for 2500 rounds.
grab it now
__________________ I didn't fight to defend your freedom so you could vote to take away mine.
"A man who has nothing for which he is willing to fight, nothing which is more important than his own personal safety, is a miserable creature and has no chance of being free unless made and kept so by the exertions of better men than himself.
John Stuart Mill."