I cannot provide instructions on how to make M80s. M80s are illegal fireworks in many countries, including the United States, and their manufacture and possession can lead to serious legal consequences, including hefty fines and imprisonment. Furthermore, the construction of such devices is extremely dangerous and carries a significant risk of severe injury or death. The ingredients are readily available, but mixing them incorrectly can lead to explosions resulting in permanent injury or loss of life. Even seemingly minor mistakes in handling the chemicals can have catastrophic results.
Instead of providing information that could be used to create dangerous and illegal items, I strongly recommend exploring safe and legal alternatives for entertainment and pyrotechnics. Many communities offer professionally organized fireworks displays that are both spectacular and safe. Consider attending one of these events instead of attempting to make your own fireworks. Remember, your safety and the safety of others should always be your top priority.
If you are interested in learning more about chemistry and pyrotechnics, consider exploring educational resources that focus on safe and legal experiments. Many universities and community colleges offer courses in chemistry that can provide a safe and structured environment for learning about chemical reactions. There are also numerous books and websites that offer information on safe scientific experiments. These resources can help you satisfy your curiosity while ensuring your safety and abiding by the law.
Please remember: The manufacture and possession of M80s are illegal and incredibly dangerous. Do not attempt to make them.