I was looking a a PSA AR-15 type upper.  It has a flash suppressor.    Could I transport the AR 15 type upper with the flash suppressor in my car (no lower anywhere in the car)?   Can I have that upper shipped to me?      As I read the rules, An AR-15 type rifle is something that is completely assembled, upper and lower.  The Upper only should only be considered a "part"

Yes

Do you have a lower nearby? If not the upper is just a bunch of parts.

Either pin/weld the barrel prior to acquiring the lower, or drop it off with a FFL if you're having the work done. Sometimes you can have muzzle device swapped and pinned prior to shipping. I'd contact PSA customer service and ask. 

Edit: you need to swap the flash suppressor for a brake. 

 

8 minutes ago, ChrisJM981 said:

Edit: you need to swap the flash suppressor for a brake. 

Or, a thread protector, or, a linear comp.