An unfinished firearm receiver, typically made of steel and milled to approximately 80% completion, forms the foundation for building a classic, early 20th-century pistol design. This component often requires additional machining, drilling, and finishing by the purchaser to become a functional firearm.
The availability of such components allows individuals with the necessary skills and equipment to customize and assemble their own firearms, offering a degree of personalization beyond factory-produced models. Historically, the ability to construct firearms at home has been linked to self-reliance and individual liberty. However, the unregulated nature of these components has also raised concerns regarding potential misuse and the challenges of tracing privately manufactured firearms.