How did I miss this thread? i r dumb.
Yes that's indeed a Nummech frame for the GS. I'm the guy that made it! The frame is in testing right now and will be available with some slight improvements in a few weeks/months. The pictures were probably taken by Stygshore's friend who is one of the people testing it out.
Factory GS frames are screaming for a foregrip extender, but it just can't be done due to the new frame layout. So this is basically the only way to get an extended foregrip onto the marker. We're using the same frame layout from the previous Mini and Axe VL frames, so if you're a fan of those ergonomics then this is for you.
IMO the coolest thing about this is that any future OLED upgrade boards will also work in this new frame. I assume any of those future boards will also come with a new touchpad which will work just fine here.
Here's more pictures:
The majority of the "extender" portion is hollowed out from the top. Here you can see the extender bridge board and the "cover" component that goes on top.