Explore the Power of the 300 Black Upper Upgrade your AR-15 with a reliable and high-performance 300 Blackout 16-inch upper from Moriarti Armaments. Explore our wide selection of 300 Blackout upper assemblies, including 300 Black upper, 300BLK upper, and 300 Blackout upper options. Experience the versatility and power of the 300 Blackout caliber, perfect for various shooting applications. Visit our website now to take your shooting experience to the next level.