I believe its required by law in AK that private (bush) pilots carry survival gear which includes a firearm, If you look at the Best Glide Aviation website they list the essential pilot gear.

If you're flying in helos and for the state you may also be asked to take helo water evacuation training. They put you in a pretend helo seat and dunk you upside down in a pool.

Don't forget that in March you'll not have a lot of daylight.

Enjoy your stay, it's a beautiful place.