At the undercover agent’s direction, the pair met at a gas station in Grand Prairie, then drove to an adjacent parking lot, where the source purchased the weapon for $800. Mr. Mackey asked if the source was “based” (a term used to indicate an embrace of white supremacist ideology) then indicated that he’d heard the source was a felon, but didn’t care.

https://www.justice.gov/usao-ndtx/pr/alleged-white-nationalist-charged-gun-crime