The Guntec USA BAR-16-RPVD-TD 16" 5.56mm barrel excels in performance while showcasing a unique tie dye pattern. Perfect for firearm enthusiasts, it blends reliability and stunning aesthetics. Constructed from high-grade 4150 chromoly steel, this barrel features a 1:7 twist rate that guarantees improved stability and shot precision. It's compatible with both 5.56x45 and .223 ammunition, ensuring a seamless shooting experience every time. 4150 Chromoly Steel 5.56/.223 Chambered in 5.56x45 1:7 Twist 1/2 by 28 Thread M4 Contour Profile Markings Spiral Engraved Near Break .750 Gas Platform System Matte Rainbow PVD (Physical Vapor Deposition) (Tie Dye Pattern) Aesthetic Coating Which Improves Durability & Lubricity M4 Feed Ramps Carbine Length Gas System Upgrade your shooting experience with the visually striking and high-performing Guntec USA BAR-16-RPVD-TD.