I have a Franklin Arms binary trigger. Many here have fired it with different calibers. I have it on a separate AR15 lower that I can put any upper on top. It is a fun trigger. It is not a trigger I would use for accuracy, even in single shot mode. The second shot in binary mode will almost certainly be off target, even with lighter recoiling AR15 rounds. I have other rifles, most of which have a Larue MBT-2S trigger.
Im not saying to not follow your dream of a binary trigger. Just that you should evaluate the experiences given and make your decision with more information.