I'd figure some of the early AI-AT adopters probably have the high mount that they'd let go. A lot of them went to the low mount, after mod 2 to AI-AT rolled out (followed by the SFP bolt).
Pretty sure all 2014 AI-AT's came with the high rail (I know mine did), that a lot of people swapped out when AI offered the low rail because of community feedback.
Pretty sure all 2014 AI-AT's came with the high rail (I know mine did), that a lot of people swapped out when AI offered the low rail because of community feedback.