Are Sony phones available for MetroPCS?

No, they don't have sony phones.

Part of the problem, is that Sony phones aren't compatible with MetroPCS technology - at least not on a full scale.

MetroPCS uses CDMA technology and most Sony phones don't use CDMA...

Any sony phone I've ever come across needs a SIM Card...CDMA phones don't use SIM cards. That right there should tell you about the obstacles.

Now, I'm sure you can go get an unlocked Sony phone, and take it to MetroPCS dealer and have them flash it and get it to work on their network. But I'd be surprised if you'd get full functionality out of it. You also run the risk of frying the phone, although this risk is slight.