Amazing, but I wonder about the quality of finished, serialized lowers at such a cheap price.
If they're at least milspec, I'd buy several.
28 bucks does sound rather cheap. I paid $50 for the last one I bought in Houston, it was an Anderson Arms, I have assembled and used it, it worked fine. I’d pay at least that for a couple more...
They are made by Anderson. Are good quality and mil-spec.
The AAO lowers in the above post are 10% off if you get a bulk pack of 5. They're milspec ande accept either GI or AR15 commercial parts, with the exception of having a non-visible threaded hole under the pistol grip for the early GI National Match adjustment to take up any slack or wobble with commercial or polymer upper receivers, I've never needed it with GI uppurs, but it is a hedge against future wear or the use of a replacement upper.