Sons of Liberty Gun Works Precision SPR 6mm ARC 14.5" 1:8 5/8x24 Muzzle Thread Midlength 416R Stainless Barrel 14-5Precision-SPR-6ARC

The Sons of Liberty Gun Works 14.5" Precision SPR Barrel Chambered in 6mm ARC is a high-performance standalone rifle component designed for long-range precision in a compact footprint. This barrel is machined from 416R stainless steel and utilizes 3-groove polygonal rifling to maximize muzzle velocity and reduce projectile deformation. The SPR profile offers increased rigidity over standard contours, effectively managing barrel harmonics and thermal shift during rapid strings of fire. It is finished with a durable black oxide coating and features a 1:8 twist rate optimized for stabilizing heavy, high-BC 6mm projectiles.