Thu Jul 20, 2023 12:09 am
Hello! These letters at the end of thunderbolts have been getting me confused for a while. Theres like 1003a, 1003asa2, 1000at, 1000bt, and 1000t. Im a new siren enthusiast and these letters at the end just confuse me a lot. I have no idea of what these mean, For example, 1003asa2, Like dude, what makes the difference. I dont even see anything noticeable -_- Plus, it just looks like federal signal slapping in random letters and numbers. Does anyone possibly know what these letters mean, Im just getting confused.
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