4" barrel, 9mm caliber. There is a stock lug and chamber area is blank. Extractor and safety are marked. Serial numbers in one- to three-digit range are unusually large—about .1875 of an inch. There were 300 post-war Lugers produced for occupation forces. They were assembled from leftover parts and only 150 have Krieghoff trademark on front toggle link—second 150 have blank links.