I just received a K98 receiver marked bcd 4 on trade and the receiver has been milled on the left side and three screw holes drilled. The milled part looks original and not a Bubba job, but I could be wrong.
The barrel is serial numbered to the receiver but at the left side of both serial numbers is a 2 on a cross within a circle. The barrel is marked syk Cc. The stock is not relieved for anything being attached to the receiver so I presume it is a replacement.
Here are some pictures of the receiver and the markings.
The barrel is serial numbered to the receiver but at the left side of both serial numbers is a 2 on a cross within a circle. The barrel is marked syk Cc. The stock is not relieved for anything being attached to the receiver so I presume it is a replacement.
Here are some pictures of the receiver and the markings.


















































