I read Terry Weiland's
SPANISH BEST some years ago, and recall him mentioning the pronunciation of the maker's full names. I believe it was something to the effect of Ah-gwi-ray ee Ah-rahn-tha-bal (with the emphasis on the "tha").
Practice saying it so that it flows off your tongue and you'll get raised eyebrows at the gun club. Important to keep a straight face when you do, as if you use that name often. "Ah-ee-ah" will have folks thinking you're a cajun, 'roun heah, specially if you emphasize the "ee".
SRH