This issue has come up a lot -- how to I buy one?
Initially Rohrbaugh was going to do "direct" retail sales where you could call up the factory and have it delivered to your FFL. Ultimately this became a hassle and they decided to go entirely through dealers.
So, you must go through an FFL dealer to make the purchase. It does not have to be any particular "authorized dealer." Just inform your FFL about the product and make the purchase through them, i.e: the deposit and final payment goes to that dealer.
Eric told me, however, that end purchasers are always welcome to call the factory and ask any questions they may have.
The list of dealers on the website is just a list of dealers who have already placed orders. Any FFL can do it -- you just may have to educate them!
Hope this helps everybody.