Yea, I went digging and found a builder that spotted the Michell transcriptor missile pieces in a screencap on a star destroyer. That same person also found out about the chips - I got mine off a heavy board that I scrapped from a scanning electron microscope labratory. Specifically, they come with the chip socket, which raises this high enough off the gun.
It has 14 feet and a curved ended rectangle cut-out in it. other chips have half circles or square cut outs in the top shell