FWIW.. my great uncle was an early special forces advisor training the S Vietnamese in '61 ..Home base for his unit was just across the border in Thailand however even then he mentioned Air America was heavily involved in clandestine air ops...
Packing a single action, cross draw. Nice.
Would love to know if he used it in anger or was mostly "just in case"
Don't really know for sure if he ever used it however he served multiple deployments and was wounded in '63
I never saw him much after '65 but even then he sort of talked me into the AF and said close air support was really needed { visions of things to come maybe } ..little did I know then four years later I'd be flying CAS missions