Primary Weapons Systems Mk114 Mod 1-m Upper 6mm ARC 14.5 LS Frc Com

The Primary Weapons Systems Mk114 Mod 1-m Upper 6mm ARC 14.5 LS Frc Com is a high-performance upper receiver assembly designed for AR-15 platforms, built around a 6mm ARC chamber to deliver excellent long-range precision and versatile performance in hunting, target shooting, and tactical applications. This upper combines a 14.5-inch configuration with thoughtful engineering to balance velocity, accuracy, and maneuverability, providing a streamlined platform that shines in varmint and medium-range precision scenarios while maintaining reliable semi-auto operation. Constructed with durability in mind, the Mk114 Mod 1-m upper features precision-fit components and quality materials to sustain consistent shot-to-shot accuracy under field conditions, enabling shooters to engage targets with confidence. Its optimized geometry and fit work in concert with the 6mm ARC cartridge to deliver flat trajectories and excellent energy retention, making it a compelling choice for shooters seeking improved ballistic performance without sacrificing reliability. Whether outfitting a dedicated hunting rifle, a versatile field rig, or a precision-minded build, this upper delivers the accuracy, consistency, and rugged performance required for demanding outdoor use and professional-grade practice.