Originally Posted by gabe_guitarded
Get it shooting upwards of 407 FPS then downgrade it to less than 407fps and see if it stops being classified as a firearm even though it was imported as one. This probably won't work but it's an idea I guess.
There's an entire dozen page thread on why that wouldn't work. The short of it is that the 407fps rule has no bearing in actual law.
"The Bird of Hermes is My Name, Eating My Wings to Make Me Tame."