I have tried a bunch of products and I like Birchwood Casey's Synthetic Gun Oil strictly as a lube. It is light, but super slick, and it seems to get into the metal's pores. It also comes in liquid and aerosol, which is handy. I do use Break Free when I have something that needs to be broken free. It is an excellent penetrating oil. The trick is a little goes a long way. If your gun is dripping oil, it collects all kind of dirt and usually ends up doing more harm than good. Just my two cents.