I have seen these plastic lower AR receivers around for a while.
I have told those that asked, that I do not support plastic for any cal other than 22lr.
BUT the price is outrageous..
http://www.tnarmsco.com/ar-style-hyb...wer-any-color/
Now a 7.62x51 (308) model??
http://www.tnarmsco.com/ar-308-presa...able-mid-2015/
Anyone with experience using these or similar plastic lowers??