I would try contacting Joe at Keystone Arms. He seems to know almost everything about the Reising. I talked to him about barrel replacement and he has said that he has done it before. I listed his contact info below.
Phone Number 570-491-4867
Office Hours: Wednesday - Friday 10:00AM thru 3:30PM - This is for Mail Order Only.
Retail Store Hours: Closed Sunday through Tuesday
Wednesday 10AM-7PM
Thursday through Saturday 10AM-5PM
Address - Keystone Arms, Inc.
4 Pennsylvania Avenue
Matamoras, PA 18336
