What Constitutes A Firearm

Interesting article about what parts constitute a firearm under current law.
ARTICLE

Thanks for that, but I have to say that's the kind of article that leaves me unsettled after reading it. I don't like bad guys getting guns thru "loopholes" created by sloppy or overly specific language. But I also don't like federal shenanigans in the courtroom and the bad behavior by ATF. Somehow I feel like the upright citizens will get the short end of the stick when this is fixed. Like always. Sigh.