Just got an eary 2 million Springfield M-1. It's in great shape and will be a good shooter and is mostly all Sprinfield. A couple of questions. It has an un-cut op rod #D65382-9 SA. I thought the 65 means post-war amd I thought all rods were changed before the end of the war. Also, used a lot of force to get the gas cylinder lock off and it wouldn't. I was afraid to force it. Also, on the sights I have the lock bar. I can't turn either of the knobs. Again, didn't want to force it. Any suggestions would be appreciated. As far as the op rod, I guess I order a war period rod and put the other on ebay or gun broker.
Thanks