I completely forgot to make this public, but this is the Tetrapod MT, a fodder enemy from FromSoftware's The Armored Core VI: Fires of Rubicon. It took me about two days to make after ripping the files from the game.(thank you to @user_2880449189 for correcting me)

It’s a fully poseable figure, though it can have some trouble staying together. If you run into stability issues, I recommend printing it at a larger scale.

I plan on posting the Light MT soon.