HSM and Armscor are in the Bitteroot
Ruana knives in Bonner
Montana bullet works Florance
Hammer Bullets C.Falls
Cavity back bullets Bozeman
Elite Iron Suppressors Bonner
Shilo Rifle and C Sharps arms are both in Big Timber
Noreen Firearms Bozeman
Snowy Mtn Rifles Hamilton
Olympus arms Helena
There is a news blurb from the state that said there were 150 firearms and ammo manufacturers in the State
FWIW, Mike Rowe had Josh Smith on talking about their new facility last week. Really good podcast and he seems to be a really good guy. If you like podcasts and haven't heard it yet, it's pretty good. Im a SD guy, but josh seems to be a true Montanan(is that the right term?)