The issue I heard from the test was, an AI trigger went down, which handed the contract to Barrett. I don't want to sound like I am pointing fingers more like filling in the blanks and thinking out loud, but to have an AI trigger go down something out of the ordinary had to happen. They do have a US Company making the Competition trigger and I am not sure if that was the trigger included or the original AI trigger. I have feeling, and again, one I did not explore with AI, that this small change resulted in the problem reported.
A lot more of the AI line is made here in the US, this was designed to help with certain contracts. AI is already used by different units and their parts are used by the likes of Crane on the Mk13s, etc. It's not like they are not in the system, but the country of origin has an effect.