Upgrade your firearm with the Ballistic Advantage 5.56 NATO 12.5″ Barrel. This Government Profile barrel is crafted from durable 4150 Chrome Moly Vanadium steel and features a QPQ corrosion-resistant finish, ensuring reliability and longevity. With a 1-7 rate of twist, this barrel is ideal for precision shooting. Compatible with registered SBRs, machine guns, and pistol configurations, it meets all NFA/ATF regulations. Enhance your shooting experience with this high-performance barrel from the Modern Series.