I have a WW2 dated 1903A3 with the stock marked R.I.A., WW2 style of stock. I assumed that the stock was made in the Rock Island Arsenal factory or did Remington still mark the stocks R.I.A. even when they were produced elsewhere in another Remington factory? I don't think that the receiver has this mark but has another marking; I will have to check on the rifle as I haven't looked recently.