Has anyone ever heard of an Imperial Era (or any era for that matter) DWM Luger being equipt with interchangable barrels of two different lengths ?!? And in 9 mm caliber? Read a story in the most recent issue of Military History magazine about a WWI capture of such a weapon. (refered to the caliber as "handloaded 9mm magnum (!)ammunition"). The weapon was supposed to be a special presentation piece given to an officer by the crown prince but the whole thing seemed highly unlikely to me. Thought I'd open the idea up to people with more expertise than myself. Any thoughts, comments or ideas?