The Sons of Liberty Gun Works Liberty Fighting 14.5" Chrome Lined Barrel is a versatile, combat-ready barrel engineered for AR-15 platform rifles seeking the ideal balance between maneuverability and ballistic performance in demanding tactical and duty applications. Chambered in 5.56mm NATO and featuring a 5R medium contour rifling profile with a midlength gas system, this barrel delivers improved reliability, reduced felt recoil, and consistent accuracy compared to carbine-length gas system configurations, making it a preferred choice for duty rifles and hard-use tactical builds. The chrome-lined bore and chamber provide superior corrosion and wear resistance for extended service life under sustained fire and adverse environmental conditions, while the phosphate exterior finish offers additional protection against the elements and rough handling. Threaded at 1/2x28 for compatibility with a wide range of muzzle devices and suppressors, this barrel strikes the perfect balance between compact handling and enhanced velocity and downrange performance, delivering the combat-proven reliability, precision craftsmanship, and uncompromising quality that Sons of Liberty Gun Works is renowned for. Sons of Liberty Gun Works Liberty Fighting 5.56mm 14.5" 1/2x28 Muzzle Thread Midlength 5R Med Contour Chrome Lined/Phosphate Barrel 145-LFB-556CL