Here is a nice used CP 111 RV Demo Tool. I have no reason to believe this won't work the way it is, but, this is untested so plan on a rebuild, that is why it is so cheap. But hey, you might get lucky and it might work fine as it is, I just don't have a compressor big enough to run it on so I can test it. Please study the picture so you know what you are getting. Ask questions if you are unsure of anything.
The item "CP111 RV DEMO TOOL CENTRAL PNEUMATICS AIR PNEUMATIC JACK HAMMER IR CHICAGO RAND" is in sale since Saturday, May 11, 2019. This item is in the category "Business & Industrial\Light Equipment & Tools\Breakers & Demolition Hammers". The seller is "gesequipment" and is located in Auburn, New York. This item can be shipped to United States.