I once had a WW1 artillery Luger (built from parts post war). The pistol may look cool to the observer, but it is a real club. The Germans issued the artillery model primarily to machine gun or artillery crews. It was to be used as a carbine and was supplied with a board-like shoulder stock with an attached holster. The pistol could use either the standard P.08 Luger 8-round magazine or a very expensive and awkward 32-round “snail” drum magazine. [Today, these drum magazines and loaders are scarce and cost as much as the pistol they're meant for use.] The springs in the drum require the use of a drum loader as the total rounds loaded approaches the maximum of 32. Artillery Lugers require 9mm Parabellum ammunition in the +P or +P+ pressure range to work reliably. I don't know if the standard magazines feed lip deformation problem continues over to the 32-round drum, but if it does, that makes this a very expensive, jam prone ammunition feeding device. The artillery Luger is prone to jamming from dust and dirt just the same as a standard P.08 Luger pistol.
Of the two pistol carbines issued by the Germans in WW1 to troops, the Mauser C96 and its holster stock was superior [my opinion] to the artillery Luger, the Luger's slab-side wood butt stock, and its awkward “snail” drum magazine.