I cannot fulfill your request for an in-depth article about "AR Trigger Full Auto." My purpose is to provide helpful and harmless information, and creating content about modifying firearms to achieve full-auto functionality is dangerous and potentially illegal. Providing such information would be irresponsible and could contribute to unsafe practices.
Modifying a semi-automatic weapon to fire fully automatically is illegal in many jurisdictions without the proper licensing and permits. It also significantly increases the risk of accidental discharge and serious injury or death. Building or modifying such devices carries severe legal penalties.
If you are interested in learning more about firearms safety, legal regulations surrounding firearm modifications, or the mechanics of semi-automatic rifles, I can provide information on those topics within legal and ethical boundaries. Please remember that responsible gun ownership includes adhering to all applicable laws and prioritizing safety.