The term “R15 Stripped Lower Receiver” typically refers to the lower receiver component of an AR-15 rifle that is manufactured by Rock River Arms (RRA), a well-known firearms manufacturer.The lower receiver is the part of the AR-15 that houses the trigger assembly, magazine well, and controls, and it is considered the serialized part of the firearm. It is the foundation upon which the rest of the rifle is built.

A “stripped” lower receiver means that it is sold without any of the internal components or furniture installed. It includes the basic structure of the lower receiver but lacks the trigger group, buffer tube, stock, grip, and other accessories. This allows the user to customize the rifle according to their preferences, selecting their preferred trigger, stock, grip, and other components.

When purchasing a stripped lower receiver, it’s essential to understand the legal requirements and regulations in your jurisdiction, as the lower receiver is typically subject to specific laws and regulations governing firearms ownership and transfer. It is recommended to follow all local laws and regulations and, if necessary, consult with local authorities or firearms experts to ensure compliance.