Sons of Liberty – Precision SPR 6mm ARC Match Barrel

Match-Grade Accuracy for Precision AR Builds

The Sons of Liberty Gun Works Precision SPR 6mm ARC Barrel represents the pinnacle of accuracy-focused AR performance. Built for shooters who demand repeatable precision at distance, this barrel is engineered with an SPR contour that prioritizes rigidity, consistency, and heat management over lightweight compromises.

Manufactured from premium 416R stainless steel and finished in a durable black oxide coating, the Precision series barrels are polygonal rifled with a 3-groove, 1:8 twist bore—delivering excellent bullet stability, reduced fouling, and enhanced velocity potential.

Designed for precision rifles, designated marksman builds, and serious long-range shooters, this barrel excels in both tactical and preparedness-focused platforms where accuracy and reliability matter most.

Available Configurations

• 14.5" Barrel – Midlength Gas System
• 16" Barrel – Midlength Gas System
• 18" Barrel – Rifle Gas System (43.4 oz)

Key Features

• Optimized SPR profile for maximum accuracy
• 416R stainless steel construction
• Black oxide corrosion-resistant finish
• 3-groove polygonal rifling for improved performance
• 1:8 twist rate ideal for modern 6mm ARC loads
• 5/8×24 threaded muzzle for suppressors and muzzle devices
• .750" gas block journal compatibility

Specifications

• Caliber: 6mm ARC
• Material: 416R Stainless Steel
• Profile: SPR
• Twist Rate: 1:8
• Rifling: 3-Groove Polygonal
• Muzzle Threads: 5/8×24
• Gas Block Journal: .750"
• Finish: Black Oxide

Whether you're building a precision AR for long-range shooting, tactical applications, or preparedness scenarios, the SOLGW Precision SPR 6mm ARC barrel delivers uncompromising performance where it counts.