Moly oil is basically a lubricant that has Teflon particles suspended in it. You can use it any where you would normally put oil. I use it on the rails and barrel of my wadgun. It has great lubricty. It also is not temperature sensitive. Meaning it works the same in cold as it does hot weather. You also have to shake very well before using. The moly particals tend to seperate from the suspention medium.