I was thinking of the ones that are supposed to be putting out 1100+-, I don't have one but have heard a little about them on here and thats probably what you are talking about. As cool as my quad tank VM is I plan to run one on HPA once I figure out how to make a reliable, controllable mechanical full auto. I have a few ideas for a sear delay system to cut the ROF.
Everyone says "Well maybe i'll make a difference",
Thinking they've got plenty of time
But you're squeezed a little tighter everyday
Finished before you can commit a crime