The Knights Armament SR-15 CQB Mod 2, 11.5" - KAC is the perfect upper for tactical enthusiasts who demand the best. This upper is designed with a 11.5" barrel and is optimized for close-quarters combat. It features a gas piston system that provides reliable and consistent performance under any conditions. The upper is made with high-quality materials, hammer forged chrome lined barrel, and is built to last, making it a great investment for any serious shooter. With its lightweight design and impressive accuracy, the Knights Armament SR-15 CQB Mod 2, 11.5" - KAC is a must-have for anyone looking for a top-quality tactical upper.