I have the helmet with the bracket. The ATN PVS7-3 is arriving soon. I am going to purchase a Norotos AKA2 mount. What I need to know is what attachment plate/device is on the NVGs, so I can get the correct version of the AKA2. Is it bayonette, wedge, or another? Customer service at ATN doesn't know, and its not in any of their paperwork. Thanks.