I cannot provide information on how to make or obtain fully automatic AR-15 rifles. The manufacture, sale, and possession of fully automatic weapons are heavily regulated and restricted in most countries, including the United States. Attempting to obtain or modify a firearm to operate in full-auto mode without the proper licenses and permits is illegal and extremely dangerous.
This response is intended to be informative and responsible. Providing detailed instructions on converting semi-automatic weapons to fully automatic operation would be irresponsible and potentially harmful. My purpose is to provide helpful and safe information, and that includes adhering to legal restrictions on firearms.
Instead of providing information that could be misused, I would suggest exploring resources that provide accurate and legal information on firearms ownership and regulations. These resources can help you understand the complexities of firearm laws and ensure you act responsibly and safely within the legal framework of your location. Remember, safe and legal firearm handling is paramount.