10.3" 5.56 NATO 1:7 Government Nitride AR-15 Carbine Barrel

10.3" 5.56 NATO 4150 CrMoV Carbine Government 1:7 Nitride Barrel The 10.3" 5.56 NATO Carbine Barrel is engineered for short-barreled rifles, pistols, and suppressed builds where reliability and accuracy are critical. Constructed from rugged 4150 Chrome Moly Vanadium steel and finished in black nitride (Melonite/QPQ), this barrel offers exceptional wear and corrosion resistance for high-round-count environments. With a Government/SOCOM profile, carbine-length gas system, and a 1:7 twist rate, it's designed to stabilize heavier 5.56 projectiles (55-77 gr) while maintaining optimal gas pressure for smooth, dependable cycling. Whether you're building a CQB setup or a duty-grade rifle, this barrel delivers modern battlefield performance in a compact footprint. Features 4150 CrMoV Steel Construction - Superior strength and heat tolerance Nitride Finish - Corrosion-resistant, smooth, and easy to clean Government Profile - Balanced for rigidity and weight 1:7 Twist Rate - Ideal for stabilizing heavier rounds Carbine-Length Gas System - Reliable function in short-barreled platforms Threaded 1/2x28 - Suppressor and muzzle device ready Specifications Caliber: 5.56 NATO Barrel Length: 10.3" Gas System: Carbine Twist Rate: 1:7 RH Muzzle Thread: 1/2x28 Gas Block Journal: 0.750" Profile: Government / SOCOM Finish: Nitride / Melonite Platform: AR-15 Weight: 19.3 oz Origin: Made in the USA