CMC AR-15 5.56 NATO Barrel 1:7 Twist a Government Profile a Non-Fluted When reliability matters and accuracy is non-negotiable, the CMC AR-15 5.56 Barrel delivers the performance serious shooters expect. Built around a proven government-profile design and chambered in 5.56 NATO, this barrel strikes the ideal balance between durability, accuracy, and everyday versatility. Available in multiple lengths to support everything from compact pistol builds to full-size carbines, it's a solid foundation for your next AR project. The fast 1:7 twist rate is designed to stabilize a wide range of bullet weights, including heavier defensive and match-grade projectiles. Whether you're punching paper at the range, training, or setting up a practical-use rifle, this twist rate offers the flexibility shooters demand from a modern AR platform. Shooters consistently praise CMC products for their quality machining and attention to detail, and this barrel follows that same philosophy. The black nitride finish helps provide excellent corrosion resistance while delivering the smooth, durable surface AR builders look for in a hard-use barrel. The government profile keeps weight manageable without sacrificing strength where it matters most. Customers and reviewers frequently highlight the barrel's solid construction, clean machining, and consistent accuracy potential. Many appreciate the dependable performance across a variety of ammunition types, making it a practical choice for shooters seeking a barrel that performs well without stretching the budget. Whether you're assembling a new rifle from the ground up or upgrading an existing build, the CMC AR-15 5.56 Barrel offers the accuracy, durability, and versatility needed to get the most out of your platform.