Just back from the local pistol range. Mostly went to work a bit with a Glock mdl 20, but also took along the DWM 1915 and the DWM Commercial.
I'm of the age where I'm so far sighted I cannot see either the front or rear sights of a Luger, so I was not troubled by not having a rear sight on the 1915. I just used the two black blurs that were the toggle knobs and the blur that was front sight base.
Worked surprisingly well. At 21 feet found I could shoot five leaf clovers with each five round magazine. Had feeding problems, which went away when I switched from the vintage magazine to a new Mec-Gar.
Nice shooter