We are still waiting for the H&K MR308 (and the MR556) but the civilian version of the H&K 417 has been available for some time. Andrew took a look at it at IWA …
The rifle has a 16.5 barrel, has an overall length of 34.6″ – 37.8″ (depending on stock position) and weighs 9.47 lbs. I have seen it advertised for around 2,500 € in Europe ($3,628).
I had the pleasure of shooting the H&K MR556 (the 5.56mm version) at SHOT Show earlier this year. It was accurate and it felt good.