[stagpanther]

What is the trigger group--standard mil spec--or some adjustable or light triggerpull drop-in custom trigger group? Is the AR a build or off-the-shelf factory gun? If your gun is somehow slam-firing the BR primers--It's probably going to do it with something else as well sooner or later IMO. I've never done it--but I've heard that it's possible to simulate a bump fire if you let the rifle move back enough under fire while holding the trigger and not allow reset and the hammer may still fall.