In the movie "Wayne's World" (1992), Mike Myers's character (the titular Wayne) says "I don't even own æ gun, let alone many guns that would necessitate an entire rack." To my ears (and to the ears of a phonetics/phonology prof who pointed this out to me), it definitely sounds like /æ/, but I can't find any documentation of a place/dialect that would pronounce it this way. Any help? Here's the YouTube link for reference: https://www.youtube.com/watch?v=RJRvPmONjVY and I found a little related discourse at this link, but it seems jumbled, to say the least: https://painintheenglish.com/case/5014 Related, and potentially useful info, is that I'm Midwestern (Chicago-born and Minnesota-raised), Mike Myers is Canadian, and "Wayne's World" takes place in Aurora, Illinois.
The vowel in question is (IPA) [a], not [æ]. The [æ]→[a] relation between US and Canadian English is common ([a] in Canada for US [æ]). Myers is just being weird: the article could be [ei] / [e] in parts of Canada and the US, or [ə] and not [æ,a] in any variety of North American English that I've encountered.