Product OverviewThe AR57 ULT 12in 5.7x28 Upper Assembly is designed for AR15 platforms, providing shooters with a lightweight and versatile upper receiver. This assembly features a 12-inch barrel with a 1:9 twist rate, tailored for optimal performance with 5.7x28mm ammunition. The black Melonite finish enhances durability and corrosion resistance, making it suitable for various shooting environments.Intended UseThis upper assembly is intended for tactical use, competition, and recreational shooting.Who It Is ForThis product is ideal for shooters seeking a lightweight upper assembly that offers reliable performance with 5.7x28mm ammunition. Those looking for a different barrel length or caliber might consider other configurations depending on their specific needs.Key Features12-inch barrel: Provides a balance between maneuverability and ballistic performance.1:9 twist rate: Optimized for stabilizing various bullet weights in 5.7x28mm.Black Melonite finish: Increases resistance to wear and environmental factors.Forged from 7075 T6 aluminum: Ensures strength while keeping the weight low.8620 steel alloy bolt carrier: Offers durability and reliable cycling.Real-World UseWhether at the range honing your skills or in a tactical scenario, the AR57 ULT 12in 5.7x28 Upper Assembly excels with its lightweight design and robust performance. Pair it with a compatible lower receiver and enjoy the precision and control it delivers when firing 5.7x28mm rounds.