Strike Industries ARCH AR-15/M4 Charging Handle - The new SI ARCH or (AR Charging Handle from Strike Industries) is a T-6 7075 forged hard anodized charging handle that functions with ease. With its high polished surface, its ergonomic design makes for a smooth, clean charge. The quality of the ARCH is second to none, it's built for durability. Once you place the ARCH on your rifle, you will see, feel, and know the quality of the ARCH! Features: Material T67075 High polish surface for smooth charging Forge process Hard Anodize Built for durability Great ergonomic feel