I tested this on some old shotguns and some Sig P226 pistols. We usually use Tetra lube on everything but decided to give it a try due to the cost. That's about 1/3 the price. It's easy to use and seems to work very well. The only dilemma? HE SMELLS TERRIBLE! To be honest it really stinks! For most applications, the smell is not an issue. But my holsters picked up the smell quickly, and I really hate it. FrogLube and Tetra are much more expensive but have very little odor.