Sun Devil MFG has begun production of DPMS pattern 308 AR receivers.
Here is a quote directly from Sun Devil MFG
We are machining the .308 lowers now. We should have the uppers ready to machine in 60 to 90 days. The MSRP is $249.95 for the lower. They look very similar to our AR15 receivers. They are DPMS compatible and they also have the tension screw.