It does seem to me, if I read this correctly, I could legally take the charger action and add a rifle stock with a >16 inch barrel but I couldn't change it back into a handgun. Or am I reading way more into this? This is also taking this thread way off topic.
The Charger has a lot of accuracy potential and might make an excellent Unlimited gun. You wouldn't have to change position to load or work a bolt. That is why I though a silhouette Tactical Solution barrel/receiver for a ruger MK II would be so nice.