Originally developed for automatic military cannons. Contains specially polymerized synthetic oils for improved boundary film strength, plus multiple ingredients to reduce friction, stop build-up of foreign particles & inhibits rust & corrosion. Safe for all gunmetal & gunmetal finishes from blued steel to titanium & for polymer composition automatics. Prevents galling on stainless steel. Non-solvent formula minimizes drain off when firearm is holstered. Environmentally safe, user-friendly.