Lead & Steel Llc LS-SURF-GRY 223/5.56 7075-T6 Aluminum

The Lead & Steel LLC LS-SURF-GRY .223/5.56 upper receiver is purpose-built for shooters who demand precision, durability, and lightweight performance in a modern tactical platform. Designed for law enforcement, military personnel, and serious civilian competitors, this upper receiver serves as the foundation for accurate, reliable rifle systems that operate across diverse operational environments. Whether you're building a duty rifle, competition platform, or field-tested defensive carbine, this component delivers the structural integrity and dimensional accuracy required for sub-MOA performance.

Machined from 7075-T6 aluminum, this upper receiver benefits from one of the highest strength-to-weight ratios available in aerospace-grade material—critical for minimizing system weight without sacrificing rigidity or receiver longevity. The T6 heat-treat process yields exceptional hardness and fatigue resistance, essential for sustained-rate fire and long-service-life applications. At just 0.66 lbs, the compact 10.9-inch profile maintains excellent ergonomics and balance while accommodating standard AR-platform components, Picatinny rails, and modern optic mounting systems without compromise to zero shift or repeatability.

This upper receiver integrates seamlessly with any mil-spec lower receiver and accepts standard .223 Remington and 5.56 NATO ammunition interchangeably, making it versatile across training, duty, and deployment scenarios. The grey anodized finish resists corrosion and abrasion while maintaining a professional appearance suitable for tactical, law enforcement, and military platforms. Installation requires no gunsmithing—simply align with your lower receiver and secure via takedown pins for immediate functionality.