In order to understand the ATF you need to be a lawyer... or understand complete gibberish. It's kind of like trying to understand any sort of law/government document.
But I think this may start you on your way. http://nerdbastards.com/2011/12/27/w...e-now-you-can/ 
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When I die better bury me deep, two .45s layin' at my feet,
An M16 across my chest, tell Chesty Puller I did my best
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