The Seekins Precision NX15 Complete Upper Receiver is engineered for sport and competition shooting, featuring a 16-inch 1:8 twist 5R 416 stainless steel barrel chambered in .223 Wylde. The NX15 upper receiver is skeletonized for reduced weight without compromising durability, and it is paired with a 15-inch NOX MLOK handguard for versatile accessory mounting. The Seekins Low Profile Adjustable Gas Block ensures reliable cycling, while the black oxide finish provides a sleek and durable appearance. This upper receiver is designed to deliver exceptional performance and accuracy, making it a top choice for competitive shooters.