Try Dale Tate. I just got a gun back that I had sent to him. It had a finicky Greener-type ejector system that was out of whack, and no one else I could find would even touch it. With much ingenuity and skill he managed to convert my gun to a non-ejector. He was very pleasant to deal with and is clearly knowledgable. Dale doesn't use e-mail, but you can reach him at 209-763-9040.