No it isn't. > The term “destructive device” shall not include any device which is neither designed nor redesigned for use as a weapon Adding a guidance syste

No it isn't. > The term “destructive device” shall not include any device which is neither designed nor redesigned for use as a weapon Adding a guidance system to a rocket does not mean it is explicitly designed as a ground-to-ground weapon. For the exact same reason it's legal to design and possess drones with guidance systems, it's legal to do so for rockets.