Lyman Ultrasonic Barrel/Gun Parts Lubricant 1 Gal. The Lyman Ultrasonic 1 Gallon Barrel/Gun Lubricant will allow you to keep up your gun hobby and have your gun looking shiny new and working just like when you bought it. Impress all of your friends family and neighbors with how clean your gun is; the Lyman Ultrasonic Gun Lube will help you achieve this. Package Contents: Lyman Ultrasonic Barrel/Gun Parts Lubricant 1 Gal Lyman 7631735: Ultrasonic Barrel/Gun Parts Lubricant 1 Gal