Volition Armament polymer stripped lowers are now available. The Tennessee Arms Co. polymer lower is is sporting a Volition Armament logo, and is available directly from Volition Armament. Check them out. If anyone is worried about the durability… DON’T be! I personally use one in my .300 BLK and I love it. They use Marine brass inserts molded into the polymer for the buffer extension and the grip screw. No stripped plastic threads!!! Contact us to get yours