The old buffer in your Spyder beat to heck or are you saying, "Where did that little black doughnut go anyways?" Your pet Fido thought it was a doggy treat? You need this buffer so the striker doesn't knock the back cap off your Spyder. It buffers the recoil of your marker as well. A very important piece of the internal assembly of your Spyder.
This is a replacement for Kingman part #26A/#18A/#18B in your manual.
