You might want to contact Ernest Marlette (Master Gunsmith) 336-456-1818. He has all the parts for the K guns and is a certified Krieghoff service center. I do not know if he will only sell the parts or not. The hardest part of rebuilding the K-32 is taking out and reinstallation of the firing pin housing. Ernest has made a jig for this and it is a breeze. After watching him service my gun, I would not hesitate in taking it apart to make repairs. I would also recommend sending him your receiver for any type of service. He does not just service the gun, he gets it to function as smooth as silk. My K-32 was made in 1958 and had some issues. After the service it now functions like new and smoother than ever.