Max, I’ve been to Alaska four times - On motorcycles once (Prudhoe Bay) and three times for hunting (Sitka Blacktail Deer, Goat and Grizzly/Black Bear).
I’m also good friends with a Master Hunter out there if you are interested in chatting...
Before I go further, what are you planning to do? Fishing? Hiking? Exploring? Stated differently, what are you going to do that might put you in harms way?
My experience hunting (aka, TRYING to put myself in Harms Way) was dozens of miles hiked, hundreds of hundreds of miles glassed, and ONE Black Bear at 400 yards heading away, fast. For that matter, I’ve never carried a handgun for bear protection...
6,300 miles of motorcycling netted three grizzlies on the side of the road eating berries...another 10,000 combined miles in Kanada netted...ZERO more bears. /sigh...
I’ve also spent close to 100 days in the Sierras and my closest encounter was at 10 yards with a Blackie - my dad and I were sleeping under the stars when I was about 12...that night when the bear decided to walk through camp. Dad rolled over and said , “hey Bear. Get the hell out of here.” Bear shook his head and wandered off...
Am I painting a picture here?
Here’s what I know about bears and in particular Brownies and Grizzlies: their hearts beat less than 30 times per minute. Shoot one in the chest and that bear still has 2+ minutes of O2 stored in those veins and muscles. The ONLY thing that will stop a bear is a CNS hit. Hit the Brain or the Spine, nothing else matters...except to delay the inevitable (that is, if the bear chooses you instead of running). A mature Grizzly is pushing 800+ pounds...a top Brown Bear is 1200+ and 13 FEET long.
If you choose a gun, pick one you own, shoot regularly and are absolutely comfortable with. You will have at most 2, maybe 2.8 seconds to react to a charging bear from 50 yards out. Odds are, distances will be much closer to 15 yards. If you’re not ready...yeah, well, right. First aid kit and lots of Bactine are your friends...
A 9mm will penetrate a Brown Bear skull. Phil Shoemaker (Master PH in Alaska, a Legend, and just plain great guy - you can google his story) met one at 20 feet with a client fly fishing. Phil’s sidearm on that trip was his 9mm. That got me thinking...a 147 gr. +P+ load is a real thing.
There was a time I thought I needed a .44 Mag for bear defense. I bought a stainless S&W 69 - 5 shot 44 Mag. Size and weight was ideal for a carry gun...and the recoil is beyond my ability. It’s brutal. I can’t shoot it and that doesn’t settle well with me. I need to figure out a useful handload - even 240 grain factory stuff is beyond my pain threshold.
My choice today is a Ruger SP101 3” stoked with 180 grain hard cast bullets over 2400. Oddly, that’s controllable. So is my 1911 Colt Stainless. Conceptually I like the SP101 in a chest holster but I have to admit I never went that far.
A can of bear spray in a chest holster is an option to consider. I don’t know if I agree that bear spray is more effective than a firearm - I’ve seen reports and studies and report language seems off to me. As if true Scientific Method got dropped in favor or other politics.
In Alaska, the weather is an issue and so is rust. If you choose to bring a firearm, stainless is your friend.
Sorry if I’m rambling. I guess I’m saying this:
1. Be AWARE.
2. Bear Spray is a good option.
3. I’m not sure if you even can, as an out of state person, buy a guy legally in a non-resident state.
Above all else, BE AWARE. That’s simply the best option.