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There were Unit disks, and two different variations of the Military bore condition stock disk.
While a missing stock disk on a Swedish military rifle may look incomplete, in some cases it is actually correct. The Stock Disk was put on the rifle by the Military, to give an indication of the bore condition and sight compensation using the two types of issue military ammunition.
However, this disk was not present in Civilian owned rifles, FSR rifles or gun club rifles. The influx of a vast number of Swedish bolt action military rifles is long gone, and most rifles being imported in the last few years are those from Estates, Clubs and individuals. Therefore, most of these rifles have no stock disk on them.
There has been a lot of activity with unscrupulous people buying stock disks that indicate a much better condition rifle than it actually is, and switching these stock disks to get more money from these mediocre rifles. Such stock disks are being produced, (in China?) and sold on E-Bay and other places.
A blank stock disk might be all right, but putting a false one, or a disk marked to a Unit on a rifle that has absolutely no association with that unit is not only wrong, but it is FAKE. It might be all right as long as you own the rifle, but if you sell the rifle, then the new buyer will accept the false stock disk or unit information as valid and correct. There is really no difference in adding a bogus stock or unit disk to a rifle and altering an ordinary firearm so that it looks like a rare model.
In a lot of cases, a Silver disk that was engraved with the owner's name or an event was made and inserted into the stock of Civilian owned rifles.
