My Weekend Question - Sneak Luger

We newbies accept the printed word without question. That's one reason we are called "newbies". Aaron Davis states in "The Luger Handbook" at page x: "There is a variation of the Luger that does not fit into any category. It is most often called the Sneak. As with any manufactured product that can be assembled from the parts outside the factory, Lugers were smuggled out of DWM piece by piece in lunch boxes and reconstructed at home. The examples of this type of Luger will run the gamut...". Quere: True, folklore, or just plain old BS? PS: I learned over the weekend that "Toad" in German is (approximately) "kroete" (since I don't have an umlaut on my keyboard). Regards to all.