You came to the wrong place to complain about cheap ar stocks not being on Amazon. Suggest you walk away slowly and find a quality retailer to trust that you get quality gear.
From a business point of view it simplifies their shipping model as there are a number of states (including their home state) that prohibit adjustable stock sales. There are a number of other stores that regulate that activity (but only to the ship to address) as well, but it is not universal (fortunately).
You came to the wrong place to complain about cheap ar stocks not being on Amazon. Suggest you walk away slowly and find a quality retailer to trust that you get quality gear.