The HAS has been sold. Thanks!
I recently upgraded to a HAS v3, so I no longer need my old v2. This comes with the HAS supergun and the power cable for connecting the HAS to a arcade power supply. I'll also include the to answer all your technical questions that I may not completely feel qualified to answer. This supergun has served me well and it works great.
As you might already know this supergun is made by forum member @RGB and he sells kick harnesses and other accessories for it in his thread.
I'm asking $100 shipped in the US. I'm not looking to ship internationally at this time.
Thanks for looking!