If you know what you are looking at it is easy to see what it is . All the evidence is in the photos . Spandau never made a small ring , it is a Gew98 stock and it fits the large ring . It is a Gew98 stock because you can see where the take down washer is filled in . It is not a Kar98 nor a K98kstock because it does not have the thru-stock sling cut out . The barrel has been cut down as a sporter , not the military because there is not enough barrel past the front sight . It is not a K98k bolt because Germans never used a bent and swept back bolt and you can see where the bolt handle is distorted from being bent . It is not a K98k rebuild because it does not have a K98k bolt nor stock and has a 1930's Gew98 rear sight on it . Those are the reasons it can not be most of the things you said it may be , and why it is exactly what I said it was . I am sorry you were mistaken .