As a professional gunsmith, I have used many different gun cleaning products in my shop and nothing compares to this product. Eagle Tears is by far the ultimate gun cleaning solvent and oil. Its crud cutting power is phenomenal, and requires less time to clean any firearm. The oil is unsurpassed by any other as well. Its lubricity keeps gun parts functioning smoothly, while decreasing fouling in the barrel and on the bolt. I will be using this product for a long time which is why I am happy that it is not carcinogenic or toxic. I am very proud to be using this product in my shop, and it will be the only cleaning brand that I will use.