Sons of Liberty - Precision SPR V2 18in Sporter Barrel, 6mm ARC

Sons of Liberty Gun Works Precision SPR V2 18" Sporter Contour Barrel — 6mm ARC is a precision-focused AR-15 replacement barrel built for long-range accuracy, reliability, and compatibility with modern 6mm ARC builds. Delivering a lightweight sporter contour, a 1:7 twist rate optimized for heavier match bullets, and a rifle-length gas system for smooth cycling, this barrel is ideal for hunters, precision shooters, and tactical-minded builders.

Key Specifications

• Model: Precision SPR V2 (18PRECISION-SPR-6ARC)
• Barrel Length: 18" (18 inches)
• Caliber: 6mm ARC
• Contour: Sporter
• Twist Rate: 1:7 — stabilizes heavier match and long-for-caliber projectiles
• Gas System: Rifle-length for reduced carrier speed and improved dwell with longer systems
• Thread: 5/8x24 — ready for muzzle devices or suppressor adapters
• Finish: QPQ (enhanced corrosion resistance and wear protection)
• Color: Black
• Fits: AR-15 platform (chambering and headspace must be verified by qualified gunsmith)
• UPC: 644625150155

Why Choose the Precision SPR V2?

• Engineered for precision: sporter contour balances weight savings with rigidity for improved accuracy in field and competition use.
• 1:7 twist pairs well with long-for-caliber match bullets, making it suited to precision hunting and long-range target work in 6mm ARC.
• Rifle-length gas yields gentler recoil impulse and reduced bolt carrier velocity when used with appropriate gas systems and buffers.
• QPQ finish increases surface hardness and corrosion resistance — ideal for heavy-use and variable-environment operations.
• 5/8x24 threading provides broad muzzle device and suppressor adapter compatibility for modular builds.

Important Safety & Compliance

• Prop 65 Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. More info: www.P65Warnings.ca.gov.
• Installation: Barrel installation, headspace checks, and headspacing gauges should be performed by a qualified gunsmith. Verify chambering compatibility before use.

Part Number: 18PRECISION-SPR-6ARC. Add this Sons of Liberty Gun Works Precision SPR V2 18" sporter contour barrel to your AR-15 build for a race-ready, precision-oriented 6mm ARC platform.