I'm not going to check every part. This seems to be about the time W. Serial numbers 1, through the end of production, so any time after April Few, if any, components bore the "NM" stamp of later models. Attached Thumbnails.
M1 Garand Born on Date.
Vintage and Manufacturer of M1 Garand Parts
Ending Number. It is based on specifications in the public domain and it is on its fourth edition, but obvious errors still remain. The patent drawings for the gas trap and gas port are seen at left and right, respectively. Glad you stopped in for a visit. S pringfield A rmory. As mentioned, I too would rather have a shooter than a wall hanger.