German Reformer Pistol

Very unique mechanism I hadn't seen before, almost like a non-revolving revolver

Pictured with chambers/barrels fired, without:

You can see how it functions/fires here https://www.youtube.com/shorts/kimd74Qi9sM I know many guntubers are chuds and I did no research on this guy so my b if he is, lmk if so and I'll remove link