I got an AIAT in an MPA chassis and I am looking to transplant it into a AO chassis. The issue I am having it that there is no factory catch to move over. I called Mile High today and the guy on the phone acted like he had no clue what I was talking about. I am probably just going to make one but if anyone knows where I can source one that would be great, I also need the pin and spring but I think I can just improvise on those