Modern Spartan Systems accuracy oil SA02 is toted as being the most powerful friction reducing agent on the planet. Firearms are a constant battle against friction, when a bullet is fired down the barrel, metal meets metal, when actions work under firing and bolts or slides work against receivers and frame rails the friction can be detrimental if not treated properly. Accuracy oil SA02 is an environmentally friendly friction reducing oil that can help improve accuracy and help firearms operate smoother in a variety of temperatures. Designed to resist corrosion as well as gumming up with sand or dirt, the Modern Spartan Systems Accuracy Oil SA02 is ready to perfrom at its peak no matter the application. MSS Accuracy Oil is sold in a variety of sizes for any need.