7mmag6 - I am not positive, but it sounds as if it either was a National Match rifle prepared by one of the Services for the National Matches, or it could be a collection of National Match parts put together, to make it appear as a fairly complete National Match Rifle.
As far as a Remington Operating Rod, I have never heard that they made any. On the other hand, they did get a "Proof of Capability" contract that had them building parts, including receivers, to assure the Government they could be held in reserve to produce M1 Garands, if needed! I swear that when I was active with the USMC, I saw an M1 Garand with the typical Script "Remington", that was issued to another Marine, he said he was glad he had been issued a Remington, because his family had always used Remington rifles. What I heard was that all of the Remington manufactured parts were turned over to Springfield Armory, for use in making more M1 Garands, and it is conceivable that some of the parts had been marked accordingly.
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