I just talked to the owner and he said that 1/2 are parts from the US and some parts from Japan and Tiawan but all assembled in California. All of the internal pistons, air box, etc are USA made; brushes and electric parts from Asia but nothing from China. He said if you plan on airing up/down alot you need the Extreme compressor as it is twice as fast as my Jr. You can also get it in the carry box like mine or mount it on the Jeep some place. Hope that helps.

Pap