I have picked up a 2nd Arisaka rifle after finding the 1st was a ceremonial rifle and could only be used with blanks no live ammo. Good wall hanger, When I got it apart ,I found different numbers stamped on different parts. Was this normal or common ? I would really like to make this one a...

Im getting a replacement stock for my Series 6 Arisaka and i'm curious if stocks of different series were ever miss matched with receivers during the war?