Originally Posted by fritzthecat
Long Guns are ok to purchase out of state as longs as it is legal to own that long gun in your home state. And the state you are buying in has no specific laws forbidding the purchase.
Handguns must be shipped to an FFL in your home state and you take possession there.
Depending on the laws of the state of residence.
BATFE says that an FFL must be involved for a transaction involving a resident of a different state.
The BATFE also says that the transactions must follow the laws of BOTH the state of residence and the state of the transaction.
It is not legal for a Californian (without an 03FFL) to purchase a gun of any kind outside of California. Hawaii is likely similar.
OP is in the military. His orders indicate his state of residence. If he is stationed in AZ or Texas, then he is legally a resident of that state.
The issue then becomes, what will happen when his deployment is over and he returns to Hawaii, or if he is later stationed in California.
If he is STATIONED in California, the DOJ will allow him to register a banned AR15, and the registration is valid for the duration of his orders.
No issues with a handgun (as long as it does not have a threaded barrel or other assault weapon features).
Hawaii will be a different story. I don't know what kind of assault weapon laws they have, but if he were returning to California to live permanently, he would not be able to bring a banned weapon with him, even if it would be legal to temporarily register for the term of his orders while stationed here.