Illinois:
Rock River Arms
Springfield Armory
Armalite
Rock Island Armory
Used to have Les Baer 'til he moved across the river.
I know Les Baer is out of Le Clair here in Iowa...I'm not sure about any others though.
Iowa also has Superior Arms is in Iowa http://www.superiorarms.com/
I think the 22a is the only S&W assembled in Maine.
Browning....What do they do in Utah?
I don't believe we have any gunmakers in GA, but Weaver, Simmons and Redfield scopes are made in Thomasville.
Maine also has a small Ving Tech. plant in Saco, that makes components (Soft Mounts) for vehicle mounted machine guns.
http://www.vingtech.com/vingtech/pro...ftmount-50cal/
NC
Remington Corporate HQ - Charlotte (?)
I.O. Inc - AK and platform variants - Monroe
Para-Ordinance - Pineville