"sawed-off" is not synonymous with shortening the barrel. Once you go under the legal limits for the particular weapon platform, then its considered a 'sawed off" weapon. The work around is the tax stamps (if available for your particular platform).
You can cut a rifle from 24" to 16" with no problem. Cut it to 15.5" and its illegal and you have to file for a SBR tax stamp. Not sure if tax stamps are available for short shotguns, but if they are I assume it would work the same way. If they are not available then you cannot cut shorter than 18" no matter what.
Dig deeper in the code and you can find the definitions for each platform and when they are considered deadly weapons/ sawed off/ or whatever other scary phrase of the day they feel like using.
x3
Not trying to start a stink. I understand the website has aright to cancel threads that might raise any questions to the law...
Anywho..
Only two men ever offered to die for you, Jesus Christ and the American Soldier. Defend your rights or lose them forever.