The Rise Armament RISE .22 ARC Complete Upper Receiver for AR-15 delivers a purpose-built solution for rifles chambered in 22 ARC, offering an 18-inch black anodized complete upper with a 1-7 twist and a fluted contour designed to balance accuracy, weight, and heat management. Engineered to pair seamlessly with AR-15 platforms, this upper maintains a clean, cohesive profile while providing reliable performance with compatible .22 ammunition when converting a standard rifle for varmint control, small-game hunting, or target plinking. The black anodized finish not only enhances corrosion resistance and durability but also delivers a subdued, professional look suitable for field use or range sessions. The 18-inch barrel length optimizes velocity and stability for longer-range shots within the AR-15 platform, and the 1-7 twist supports stable stabilization of a variety of .22 ARC projectiles. The complete upper receiver assembly simplifies installation, enabling a straightforward upgrade path for shooters seeking enhanced accuracy, modularity, and expanded shooting possibilities without compromising the familiar handling of their AR-15 rifle.