80% AR Receiver = $79.99
Finished 7075 T6 AR Receiver = $89.99
http://www.gunbroker.com/Auction/Vie...Item=357093488
There ain't any money in figuring out a way to rent machines to finish off 80% receivers. Don't forget, they still have to be coated after machining. Lower receivers are once again cheap as all get out....and probably getting cheaper.