Ok. So I have check all of the above issues and still nothing...
Springs seem to be in the correct position (I don't have a working one to compare it to)
The roller is working nicely.
One thing I did notice is that I can put a mag in the lower receiver, and fire it with only a quick pft. I expected it to vent the hole mag. I re-disassembled the trigger group and the spring that pushes the hammer forward appears to be ok and not bent or broken.
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