That last case with the malfunctiong Ar is in wisconsin. I live there i am almost afraid to fine tune my triggers now. you get them to light it would be hard to tell accidental second pull from a true double. its real easy to get that thing set so light that it will be pulled a second time by accident or bump fire from the mear recoil of the gun bouncing back of my shoulder. how would you prove it wasent a double. its got a spring loaded firing pin but who knows what the atf could do if they messed with it by them.
How would they veiw if the gun (AK) fired when the trigger is released after being pulled back from firing, letting the hammer go forward but NOT being caught by the trigger??? techinicaly the hammer is pulled back causing one shot then moved a second time forward (the release of the trigger and the disconector). I would see it as two movements of the trigger. the effect is almost the same as a double and hard to prove the trigger did not catch. Many adjustable triggers travel can be adjusted to the point that they will not catch when released from the disconector. MAN THIS HAS ME THINKING. A little wear after shooting 1500 rounds could be trouble on a AR or a AK.