Is there any chance you can convince one of the AR makers to offer an upper in 9x39? I am not a great fan of rebated cases and only JDJ (JDJ obviously beleives in capitalism)and Olyarms(last resort) offer the Whisper and the 9x39 seems to have been a success in Russian hands. If nothing else it could also be offered, besides in the heavy subsonic loading, in a 180 gr load and be sold as a semiauto version of the 35 Remington.
Thanks.