The registration of handguns is a different thing from the registration of long guns. Handguns have been registered since 1934. The registrations were done by police officers. When a handgun is registered now, it is a verified firearm, which means the information that's entered into the system is way more accurate--way more accurate--than the information that would be entered initially about a potential long gun.
Answering that question with a simple yes or no is not really doing anybody, including you, a service.