The Daniel Defense 5.56mm NATO is a purpose-built, mission-grade replacement barrel that blends durability, accuracy, and practical ballistics. Manufactured from chrome-moly-vanadium and cold-hammer-forged for exceptional strength and long service life, the 14.5-inch Government profile offers improved muzzle velocity and effective range over carbine lengths while remaining compact enough for tactical applications. The 1:7" twist rate stabilizes a wide range of 5.56 NATO projectiles (particularly heavier 62–77 gr loads), and the mid-length gas system with a low-profile gas block delivers smooth, reliable cycling and reduced recoil impulse. Finished to tight tolerances and compatible with standard 5.56/.223 muzzle devices, this assembly is ideal for professionals and serious shooters seeking a rugged, repeatable barrel upgrade for duty or competition use. All of Daniel Defense’s Barrels offer high performance and a long lasting construction. All barrels are cold-hammer forged and made from 4150 Chrome Moly Vanadium steel with a mil-spec heavy phosphate coating as well as a chrome lining for superior durability. In addition, Daniel Defense Barrels are offered in a massive assortment of configurations, with options available for different lengths, gas-blocks, thread pitches, and calibers. Features: Cold-hammer forged in Made from 4150 Chrome Moly Vanadium steel Mil-spec heavy phosphate coating Chrome lined Available different lengths, gas-blocks, thread pitches, and calibers Daniel Defense 5.56mm NATO 14.5" 1:7" CMV CHF Mid-Length Gov't Barrel Assembly w/LPG 07-077-07308