This is the section that allows for grandfathering of registered firearms " This subsection shall not apply to a person's possession of an assault rifle, assault shotgun, or .50 caliber rifle registered to the person subject to the requirements of section 134-3."
There are people with unregistered rifles grandfathered before the registration law passed long ago. These will have to be registered.
As the bill is written, if you take one of these firearms out of state - like to hunt, shooting class, manufacturer repair (?), etc, you cannot bring it back to Hawaii
Almost all semiauto rifles will be considered AW to include mini14s, m1 carbines, etc because of the barrel shroud.
Some semi-auto shotguns will be banned because of the 5 shell limit for the tubes