I'm not aware of any videos of it being disassembled, but there is a 3D animation of its operation, and its pretty wild. Aside from the way the bolt is set up so that the magazine can be at the very rear, it also ejects cases forward, like 40 years before the F2000.
Damn, that's rad af. It's very close to one of my head designs (that I've called the bullpuppest bullpup". Something to consider if I ever go into small arms (a small, but non-zero chance with my current workshoppy trajectory).
I'm surprised nobody's used this concept for anything.
Like a 30" shotgun with a 18" barrel+8"suppressor fed by a 9+1x3"12ga tube mag on top that ejects downward.
It allows a more compact gun, avoids the mushy trigger problem of bullpups.
I'm guessing the mechanism for having feeding right at the very rear of the receiver is just too complicated and finicky.
I'm also not sure if this really avoids the trigger issue, it never went past the prototype stage so there aren't exactly any detailed reports on its ergonomics, but I would assume it would suffer from similar issues since the trigger is connected to the actual firing mechanism by a long bar,
the trigger is connected to the actual firing mechanism by a long bar
Only to reset it, instead of a long bar that directly releases the hammer, the trigger mechanism releases another mechanism that flies back and releases the hammer, check 55 seconds in: https://vid.puffyan.us/watch?v=J5x_clmnUjo