PROOF Research PR15 6mm ARC Barrel 14.5 Inch 5/8x24 1:7.5 Twist

PROOF Research PR15 6mm ARC Barrel 14.5 Inch 5/8x24 1:7.5 Twist

The PROOF Research PR15 barrel is built for shooters who want premium AR-platform accuracy, reduced weight, and dependable performance in a 6mm ARC setup. Designed for the AR-15 platform, this 14.5-inch barrel offers an excellent balance of maneuverability and ballistic efficiency, making it a strong choice for compact precision builds, hunting rifles, and general-purpose modern sporting rifle configurations.

With a 1:7.5 twist rate and 5/8x24 threaded muzzle, this PR15 barrel is well suited for shooters running a wide range of 6mm ARC loads while maintaining compatibility with common muzzle devices and suppressor-ready setups. Whether you are building a lightweight field rifle or upgrading an existing AR for better precision and long-range performance, this PROOF Research barrel is designed to deliver premium fit, function, and consistency.

Features

• AR-15 platform barrel chambered in 6mm ARC
• 14.5-inch barrel length
• 1:7.5 twist rate
• 5/8x24 threaded muzzle
• Built for lightweight precision and dependable performance
• Ideal for compact AR builds and modern rifle upgrades
• Compatible with common muzzle devices and suppressor-ready setups
• Premium PROOF Research barrel construction

Specifications

• Brand: PROOF Research
• Model: PR15
• Manufacturer Part Number: 130377
• UPC: 843068130377
• Item Number: 195858
• Product Type: Rifle Barrel
• Platform: AR-15
• Caliber: 6mm ARC
• Barrel Length: 14.5"
• Thread Pitch: 5/8x24
• Twist Rate: 1:7.5

FFL / SOT Notice

FFL-REGULATED ITEMS: Must ship to a valid FFL. NFA items must follow all ATF and SOT requirements. Export or disclosure may be restricted under U.S. law. More information at checkout.