Originally Posted by
Tuna
That sounds like it may be a Bavarian carbine. At the end of WW2 the US armed many German and later Austrian police type agencies with carbines. Many times these were modified by an agency to something like a rifle that had been used during the war. Sometimes the dove tail was left alone but many times it was machined off and a slot cut in the receiver and a V notch type sight installed. Some people collect Bavarian carbines and often you will find them with separate sets of numbers on things like trigger housings, bolt, stocks and maybe some other parts too. The numbers got mixed up during rebuilding in Germany. But this is where US carbines get the name Bavarian from even though they were used through out Germany and not just Bavaria.