This is an interesting piece from the ATF. Guess they have it in mind to reclassify toys as machine guns. The really interesting thing is that they are attempting to memory hole their document of their findings. Keep it internal to use against Airsoft owners and importers is my guess.
Here's the cached version of their document (too bad no-one ever told them how the interwebs worked).
ATF Ruling 2010-4 - Certain AR/M-16-style Air Guns Classified as Firearms under the Gun Act
And here's their link to the original document. They're not too good at keeping secrets at F-Troop.
http://www.atf.gov/regulations-rulings/rulings/atf-rulings/atf-ruling-2010-4.html
Here's the cached version of their document (too bad no-one ever told them how the interwebs worked).
ATF Ruling 2010-4 - Certain AR/M-16-style Air Guns Classified as Firearms under the Gun Act
And here's their link to the original document. They're not too good at keeping secrets at F-Troop.
http://www.atf.gov/regulations-rulings/rulings/atf-rulings/atf-ruling-2010-4.html