The 3M Performance Spray Gun Service Kit provides the most frequently needed replacement parts for the 3M Performance Spray Gun. It allows you to refresh the performance of the gun by replacing seals, o-rings, and other wear parts.Use the 3M Performance Spray Gun Service Kit as a comprehensive set of the most frequently worn-out parts of your spray gun. It is ideal for helping to reduce downtime on the job with quick and easy reassembly of the spray gun. With this kit, owners can disassemble the spray gun to replace all seals, springs, and some original fasteners. The kit includes O-ring seals for hardware, multiple poppet valve internal seals, a replacement needle spring, and a replacement poppet spring. Use only with the 3M Performance Spray Gun. Made from an impact-resistant composite, it is one of the lightest spray guns in the industry, yet durable enough for demanding industrial and automotive conditions. Its versatile design allows painters to spray from a pressurized source or a gravity cup, and replaceable atomizing heads allow you to spray a wide range of coatings while delivering like-new performance with every new nozzle. Note: Do not maintain or service the spray gun other than as detailed in the instruction manual.