Interesting exercise in design, but I am not sure I want to be a beta tester. I know some variant of the AK family has a similar system, so may not be as risky as I see it. For a 556 gun, I am not sure what the point is. IMO, one would be better off with some training and or practice to manage the gun. Maybe for some of the larger caliber AR's like 308, 6.5 it could make some sense. Needs a LOT of testing and to establish a really high rounds between failure to make sense.