You are bidding on a brand new piston with ring & buffer for the old ramset model d-75 powder actuated tool. THESE ARE MADE IN THE USA! I HAVE BEEN MANUFACTURING PARTS FOR POWDER ACTUATED TOOLS FOR OVER 30 YEARS! I KNOW THE TOOLS & I KNOW HOW TO MAKE THE PARTS! IF THERE IS ANY OTHER PART FOR ANY POWDER ACTUATED TOOL THAT YOU NEED, SEND ME AN EMAIL I PROBABLY HAVE IT!