Sons of Liberty Gun Works Precision SPR 6mm MAX 20" 1:7.5 5/8x24 Muzzle Thread Rifle+1 416R Stainless Barrel 20Precision-SPR-6MAX

The Sons of Liberty Gun Works 20" Precision SPR Barrel in 6mm MAX is a premium rifle component engineered for maximum velocity and long-range accuracy. Machined from 416R stainless steel, it features proprietary P3 polygonal 3-groove rifling that enhances barrel life and bullet consistency. This model utilizes a unique Rifle+1 gas system, which extends the gas port location by one inch to optimize the pressure curve and reduce bolt carrier velocity for smoother cycling. The SPR profile provides a heavy, rigid contour that minimizes barrel whip and manages heat effectively during precision shooting sessions.