Totally Rebuilt during Covid Shut down. I upgraded unit with Belt drive. Incredible noise reduction from chain drive. Also I upgraded to both upper and lower. “New” cylinders and “New” Harden upper and lower pistons. Harden M-4 steel designed for Millions and Millions of cycling. Unit is in great condition. I also will include tons of rebuilt O Rings and inserts. This is the most easiest compressor to work on. Everything is designed to be easily replaced. Check out You Tube for many in depth videos on how to safely work on the compressor. The item “Shoebox Air Compressor 4500 psi High Pressure Secondary Pump Air guns Paintball” is in sale since Saturday, September 12, 2020. This item is in the category “Sporting Goods\Outdoor Sports\Air Guns & Slingshots\Accessories”. The seller is “kip5555″ and is located in Bay Village, Ohio. This item can be shipped to United States.