There were some posts on this topica couple of months back.I bought a bow that came with a DZ on it and was getting some noise. Some members have said that the launcher arm makes noise when it falls into the housing, one person had posted pictures of his fix, he had placed a cushion at the bottom of the housing for the arm to fall on. It did require taking the rest apart though. Try doing a search on DZ or Dropzone and see what you find. Hope this helps