Got my 2 in today (ordered Tuesday). They both came in their own individual unmarked box and the rails were wrapped in styrofoam-ish packing material. The barrel nut, hardware, and wrench were in sealed plastic packaging. No instructions.
My rails were in pristine condition and, without rails, weigh 10 oz according to my scale. Each of the rail sections is ~ 1 oz. 3 rail sections come with each rail.
My opinion is that these are great rails for the price as long as you don't care about mlok/keymod compatibility.
They are back in stock as of right now.