Hawaii gun laws, what could/couldn't I bring?

Looks like you will have a number of problems with your move. You'll need to register all the guns you bring into Hawaii with the Chief of Police.

Here is a list of prohibited firearms. Your magazines are going to be an issue in many cases:

FIREARMS PROHIBITED

Full auto (machine gun) firearms are not permitted in Hawaii (since statehood) except for military and law enforcement.

“Assault pistols”, defined by several characteristics, essentially large semi auto pistols of cosmetic paramilitary appearance, usually accepting detachable magazines of over 10 rounds capacity, are banned, except those registered before July 1992 (grand-fathered, may not be transferred). These include semi auto versions of UZI, Tech-9, etc., and certain large target pistols. A non-inclusive list is available from the State Attorney General and county police chiefs,

Hawaii state law prohibits greater than 10 round detachable pistol magazines (including rifle magazines capable of use in any pistol, such as the AR-15/M16, AK, M1 carbine, H&K carbine, Thompson, and aftermarket Ruger .22 magazines) unless blocked to hold 10 rounds or less and “not readily restorable”. Possession of illegal magazines is a misdemeanor, and possession of a handgun with one inserted is a class C felony. There is much debate among gun owners, law enforcement, and dealers over the interpretation of this portion of the statutes when rifle magazines which fit handguns are considered, and the prohibition is not generally enforced.

The federal 1994 “assault rifle” ban is now sunset and void.

Stun guns, cannon, silencers, hand grenades, explosives, bombs, Teflon coated ammunition, explosive or segmenting ammunition, handguns made of zinc allowing melting at less than 800 degrees F (the legal definition of “Saturday night special”), shotguns with barrels less than 18 inches and rifles with barrels less that 16 inches are illegal in Hawaii.

Handgun mags that hold more than 10 rounds are illegal.

All firearms and ammunition must be registered with the chief of police of the county of one’s place of business, one’s residence, or one’s place of sojourn.2 This includes firearms of any description, whether usable or unusable, serviceable or unserviceable, modern or antique, or ammunition of any type and description. Exempt from this registration are all unserviceable firearms and destructive devices registered with the Director, Bureau of Alcohol, Tobacco and Firearms.

Every person arriving in the state is required to register their firearms within 3 days after arrival of the person or of the firearm, whichever arrives later. Exempt from this registration are: any device that is designed to fire loose black powder or that is a firearm manufactured before 1899; any device not designed to fire or made incapable of being readily restored to a firing condition; or all unserviceable firearms and destructive devices registered with the Bureau of Alcohol, Tobacco & Firearms. There is no registration fee.

The Department of the Attorney General receives duplicate copies of all registrations.

Read through the link below.

Why don't you google HI gun laws and know for sure?