I believe Remington the 03-A3 was commonly factory built with a combination of Parkerizing and bluing on certain parts. The bands being one of the blued parts. Maybe the floorplate/trigger guard assy as well?
Years ago I bought what appeared to be an unissued Rem 03-A3. The Parkerizing on barrel and receiver was pale greenish gray and there were some blued parts.
I'll try to remember to check my Brophy Book of the Springfield.