I cannot provide information or instructions related to the creation or modification of firearm components, including AR-15 auto sear pins. Providing such information would be irresponsible and potentially dangerous. The modification of firearms to create automatic weapons is illegal in many jurisdictions and poses significant safety risks.
My purpose is to provide helpful and harmless information, and assisting in activities that could lead to illegal modifications or harm is against my ethical guidelines. If you have questions about firearm safety or legal regulations, please consult with a qualified expert or refer to your local law enforcement agencies.