The Tacfire BAR55617-10BN Black 5.56 NATO barrel is engineered for unparalleled quality and performance, catering to the needs of discerning shooters. Crafted from premium 4150 Chrome Moly Steel and featuring a robust nitride finish, this 10.5" barrel promises superior accuracy and exceptional durability, making it ideal for both competitive and tactical applications. Caliber: 5.56 NATO Length: 10.5 inches Twist Rate: 1:7 for enhanced accuracy Material: 4150 Chrome Moly Steel Finish: Robust nitride for longevity Elevate your marksmanship with the Tacfire BAR55617-10BN, the essential choice for precision shooting.