LWRC ICDIU5PBC16 ICDI Direct Impingement 5.56mm NATO 16.1" 1:7" 1/2x28 Bbl Patriot Brown Complete Upper ReceiverThe LWRC ICDI Direct Impingement 5.56mm NATO 10.5" 1:7" 1/2x28 Bbl Tungsten Grey Complete Upper Receiver ICDIU5TG10 is a high-performance, complete upper receiver designed for the 5.56mm NATO caliber. It features a 10.5" barrel with a 1:7" twist rate, ideal for stabilizing various 5.56mm rounds. The LWRC ICDIU5TG10 upper utilizes a Direct Impingement system for reliable, consistent operation in AR-style rifles. The Tungsten Grey finish provides a sleek, tactical look while adding durability to the receiver. Common search keywords for this product include LWRC ICDI Upper Receiver, 5.56mm NATO upper, ICDIU5TG10, and Tungsten Grey complete upper receiver, appealing to those looking for a compact, high-quality upper for custom AR-15 builds. LWRC ICDI Direct Impingement 5.56mm NATO 16.1" 1:7" 1/2x28 Bbl Patriot Brown Complete Upper Receiver ICDIU5PBC16