Section 265 defines a firearm (besides pistols) as any shotgun or rifle that has a barrel of less than 18 inches, or any modified rifle or shotgun with a barrel less than 26 inches... So being as laws can only be enforced under the definitions listed, modifying a barrel to 27 inches would then...

https://www.change.org/petitions/new-york-state-voters-create-a-51st-state-or-free-upstate-new-york-from-nyc-control When in the course of human events...NYC and Upstate New York often have diametrically opposing points of view due to demographic difference and population density. Consider...