Its not a semi krieg. They have screws on the barrel bands and no band retained between them and no rod hole. I payed more attention when you wrote it had a rod hole. Who ever did disk delete prolly cleaned up the lug too.
That's a semi kreigsmodell stock that was used in late war production without the bayo lug or rod hole. It should have the take down disk in the stock and the butt plate is incorrect. I think that stock was only used on late44 & 45 production years.