The Luth-Ar AR-15 16'' LO-DRAG BULL UPPER RECEIVER delivers a robust, precision-ready platform that pairs a 16-inch bull contour with an anodized black finish for a clean, durable upper assembly built to endure rugged field use and steady-shot performance. Designed for AR-15 compatibility and chambered in 5.56x45mm NATO, this upper delivers a reliable twist rate of 1-7, making it suitable for a wide range of mid-weight to heavier bullets while maintaining versatile feed and compatibility with commonly available components. The bull profile enhances rigidity and accuracy potential, supporting steady barrel harmonics during high-volume plinking, varmint pursuits, and precision-oriented builds. Its assembled configuration streamlines the assembly process, allowing you to focus on setup, zero, and effective range sessions rather than complex fitting. Whether upgrading an existing AR-15 platform or building a dedicated long-range or duty-ready rifle, this upper receiver provides a strong foundation for dependable performance, clean handling, and consistent returns on your ammunition investment, all in a sleek, low-profile package designed to complement modern optics and handguard systems.