AR-15 barrels are the single most important factor in determining a rifle’s capabilities and performance. Barrel length, profile, gas system, caliber, and other variables dramatically affect weight, balance, velocity, and accuracy. Understanding the fundamentals of barrel design and terminology is essential for building, modifying, or purchasing an AR-15 that meets your specific needs. This guide … Continue reading The Complete Guide to AR-15 Barrels: From Selection to Maintenance