Yes. As the NRA sporters anyway sometimes served as basis for an even nicer Sporter, it should be the case here too.
Another trace of NRA Sporters/NM rifles is the distinctive polishing of the bolt. Sometimes NRA Sporters also feature the serial number of the rifle engraved to the bolt (can also be hidden under the extractor). If not, at least the polishing marks around the rear locking lug are enough to identify the bolt as NM bolt.