Support for Asus RT-AC65

I have an Asus RT-AC65 router. I found that Open-Wrt supports the RT-AC65"P" (vs. the straight RT-AC65). Does anyone know whether I could use that firmware on the straight RT-AC65? Thank you.

Thanks for responding! That's too bad. Any idea whether there will be any way to do it or some other support for the straight RT-AC65 from Open-Wrt or elsewhere? (no support currently from DD-WRT or Tomato). Keep me posted.

What do you think of the stock firmware? I'm waiting for mine to be delivered today so I haven't seen it yet. At least from the promotion when I bought it it seems to have some good features--i.e., beamforming and MU-MIMO.