Pro-Shot Zero Friction Lubricant and Penetrant Brown Gallon. Pro-Shot's Zero Friction is a superior premium fully synthetic firearms lubricant. It is a non- gumming metal treatment protector that clings to metal parts and provides exceptional lubrication for smooth operation of all moving parts. Operating Temperature from -75F to over 450F. Pack of 4. Specifications for Pro-Shot Zero Friction Lubricant and Penetrant: Manufacturer: Pro-Shot Color: Black Included Accessories: Standard Package Contents: Pro-Shot Zero Friction Lubricant and Penetrant Pro-Shot ZF-GAL: Zero Friction Lubricant and Penetrant Brown Gallon