O85 CLP is their most time-tested formula, with over 30 years of proven performance in cleaning, lubricating and protecting firearms. But don&';t let old age fool you. O85 CLP uses advanced engineering to penetrate tight spaces and create a thin film that stops rust and corrosion for long-lasting protection.Features : Cleans, Lubricates and Protects in one Advanced Formula Removes Carbon, Powder Residue and Fouling from Metal Surfaces Penetrates into Tight Areas to Reduce Surface Friction 4 Ounce Tin