Hi to all, sheepherder has it about right... You can either buy an original 1945 take off, or armorers spare and have a good chance of a nice replacement and everything clocking up well... Or, you can try a post war replacement of questionable quality, and pay the machinist for his time... AND, still not end up with a satisfactory attempt... An excellent original, or even an excellent correct new barrel is going to run you $150.00 on average.. to take the old one off, and put the new one on, another $100.00 ... If you want to take the plunge, I'm your huckleberry...

..... But, as stated above, there are plenty of qualified forum members to handle this task... Let me know, and as always, best to you, til..lat'r...GT