The One Horse OH-15 Stripped Lower is a precision-machined AR-15 lower receiver built from durable 7075-T6 aluminum with a black finish. Designed to mil-spec dimensions, it provides a strong, reliable foundation for custom AR builds across a wide range of calibers and configurations.Compatible with standard mil-spec AR-15 upper receivers and lower parts kits, the OH-15 offers straightforward assembly and dependable fitment for builders who want complete control over their rifle setup. Lightweight, rugged, and dimensionally accurate, its an ideal starting point for creating a fully customized AR platform without compromise.