Quoted:
Building an AR-15 for the first time and decided to try to get the majority of the major parts  companies either based in the Northwest or owned by companies in the Northwest.

Here's the parts list:
Northwest:
Aero Precision assembled upper (WA)
Aero Precision stripped lower (WA)
Ballistic Advantage 17.7" Hanson mid-length performance series barrel (FL but owned by Aero)
Odin Works 223 nitride BCG (ID)  What? Why not an Aero?
SeekinsPrecision NOXs M-LOK 15" Rail (ID)


Non NW:
Midwest Industries 3-CHAMBER AR Muzzle Brake (WI)
Magpul MOE® Carbine Stock - FDE (WY)
Strike Industries ARCH - AR-15 Charging Handle - Extended Latch (CA) Personally, after the crap laws CA has enacted, I wouldn't buy anything from there if I could keep from it.
JBO Lower Receiver Parts Kit WITHOUT Trigger (KS)
JBO Stainless Steel Gas Tube - Mid Length (KS)
Hiperfire Hipertouch EDT Enhanced Duty Trigger (MN) If this is your first AR, you might catch some crap for this choice from the "Start with a mil-spec" crowd.
ERGO 2 Suregrip - FDE (NM)
Spikes Tactical 6pos Milspec Carbine Stock Hardware Kit with T2 Buffer (FL)
30rd Hexmag - FDE (CO) Get several and lots of ammo. Both may be hard to find this time next year. If not impossible.
Diamondhead Polymer Sights (MA)


Pics of parts and progress so far:
https://www.northwestfirearms.com/attachments/image-jpeg.304885/

https://www.northwestfirearms.com/attachments/image-jpeg.305141/
https://www.northwestfirearms.com/attachments/image-jpeg.305382/