6" barrel, 9mm caliber. Some have a stock lug; others have been noted without. Chamber area is generally blank, but some have been found with 1914-1918 dates stamped on them. These were reworked by DWM from Military Navy Lugers after WWI for commercial sales. They are marked "Germany" or "Made in Germany" and were sold by Stoeger Arms, among others. Extractor and safety are both marked and unique Navy sight is on rear toggle link. No one knows exactly how many were produced, but they are quite scarce.