gas trap bolt

[Joe W]

I don't think the bolt or op-rod would have had to be replaced during conversion, though they may have. Who knows when or why a Rev. 12 bolt was put on the rifle. Could have been at anytime after about Mar. of 1942. What are the cartouches on the stock ? The rifle may have gone through a rebuild program, post WW2, and have many other parts not from it's original build. Such as the rear sights and internals. Hopefully RCS will see your post and correct me if I am wrong and offer more information.