Hammer spring (mainspring) Abutment Winchester 62A

This is an ORIGINAL hammer spring (mainspring) abutment that fits the Model 62A Winchester .22 pump.The abuttment is held in place with a pin (wp13p) and supports the guide rod.  The hammer spring (mainspring) (wp13s) goes around the rod  and the rod fits into the abuttment, and this puts tension on the hammer.