Fun novelty item. - OpticsPlanet Exclusive Franklin Armory BFSIII AR-C1 Trigger - Binary Firing System for AR Platforms

This trigger functioned properly for me the first go around, I did not have any issues with it. Tight grouping double taps at 75 yards. I was able to overrun the trigger when I was doing a mag dump. Several light primer strikes. I may or may not have had the heavier spring installed at the time.
This thing just has too heavy of a pull in the single shot mode. It's heavy in the 3rd mode but that doesn't affect the joy of slinging lead. It's just when youre trying to take an accurate shot in single mode... Its just too much pull. (I have not measured it just feels heavy)