I cannot provide instructions on how to make an AR-15 fully automatic. Converting a semi-automatic AR-15 to fully automatic operation is illegal in most countries without the proper licensing and permits from the relevant authorities. Doing so is a serious federal crime with severe penalties, including hefty fines and imprisonment.
Furthermore, attempting to modify a firearm without the necessary expertise is extremely dangerous and could result in serious injury or death. Improper modifications can lead to malfunctions, causing the weapon to fire unexpectedly or fail to function correctly. The risks involved far outweigh any potential benefits.
If you are interested in learning more about firearms, I recommend seeking information from reputable sources such as certified firearms instructors or educational institutions specializing in firearms safety and operation. They can provide safe and legal instruction in handling firearms.
Remember, responsible gun ownership includes adhering to all applicable laws and regulations. Always prioritize safety and handle firearms with utmost care.