So, I finally, perhaps, found the most detailed article about this weapon: [1] (on Russian language, though). --Slon95 (talk) 12:59, 17 November 2017 (EST)
Well, this article provides a lot new info. Looks a very careful research. Greg-Z (talk) 13:17, 17 November 2017 (EST)
Okay, so what does that mean? "M1916" is actually M1919? Since the real M1916, it turns out, did not have a front grip and a barrel shroud. --Slon95 (talk) 18:18, 17 November 2017 (EST)
Hm. Author says he only saw one gun in what he said was the original configuration, though. From what google translate tells me, the one he saw had a 15-round magazine and no foregrip? Evil Tim (talk) 18:47, 17 November 2017 (EST)
And a number of later versions, which I do not even know how to describe: [2], [3]. --Slon95 (talk) 19:05, 9 May 2018 (EDT)