Pennsylvania's offensive weapons law
“Any bomb, grenade, machine gun, sawed-off shotgun with a barrel less than 18 inches”
Pennsylvania lists the machine gun as an offensive weapon without defining it, and complying with the National Firearms Act is a defense (§ 908(b)(1)), so the federal definition decides in practice. No state statute names forced reset triggers, but York City's 2025 ordinance bans rapid fire devices including FRTs, and no court has yet ruled on it under the state preemption law.








