The AR-15 stripped lower receiver is a component of the AR-15 rifle that serves as the foundation for the firearm. It is the serialized part of the rifle that is legally considered a firearm in the United States. The lower receiver houses the trigger mechanism, magazine well, and other essential components.A stripped lower receiver is essentially the lower receiver without any internal parts or furniture. It does not include the trigger, hammer, safety selector, magazine release, or any other components typically found in a complete lower receiver assembly.

Please note that regulations regarding firearms vary by country and even within different jurisdictions. It’s essential to familiarize yourself with the laws and regulations in your specific location before purchasing or building any firearm. Additionally, it’s important to prioritize safety and responsible firearm ownership practices.