Battle Arms Development Workhorse 10.5 Upper 5.56 NATO Gray Ar-15

The Battle Arms Development Workhorse 10.5" UPR in Gray combines precision engineering with versatile performance as a complete upper receiver designed for AR-15 platforms chambered in 5.56x45mm NATO. Built around a compact 10.5" barrel, this upper delivers a balanced blend of maneuverability and accuracy, optimized for dynamic shooters who need quick target acquisitions and reliable performance in tight spaces. The M-LOK handguard provides modular accessory mounting while the anodized finish in sniper gray offers durability and a low-reflectance appearance. As a complete upper, it comes equipped with the Bad Rack-15 C ambidextrous charging handle and an AR-15/M16 bolt carrier group, ensuring smooth operation from first shot to last. This Workhorse upper is compatible with AR-15 platform builds, enabling seamless integration with standard receivers and components for a dependable, ready-to-run upper assembly. Whether you're building a compact patrol rifle, a compact sporting rifle, or a versatile research and recreational rig, this upper delivers consistent cycling, solid heat management, and a rigid, repeatable fit that professionals and enthusiasts rely on for real-world shooting applications.