Pretty sure the Hatsan is Chinese. I seem to have found the identical compressor, minus the decals, for $264 delivered with power supply and an air drier. Wish there was a little more info online. I was going to wait for the JSAR unit, but for roughly half the price, tough time keeping my Visa card holstered.
Advantage to the Hatsan labeled one is USA warranty support. When I had just a Maximus, hand pumping looked doable. Now, with an Mrodair M10 and a Hatsan AT44 10, compressors are looking more attractive.