The Proof Research 152263 PR15 6 ARC 20 7.5TW PXT barrel is a precision-engineered extra barrel designed for shooters who demand consistent accuracy from their AR-platform rifles. Built by Proof Research, this stainless barrel offers a balanced profile that supports repeatable performance while maintaining durability for extended range sessions.

This model is tailored for the 6 ARC cartridge and configured with a 20-inch length to maximize ballistic efficiency and downrange stability. As an accessory barrel, it is ideal for upgrading an existing rifle or building a dedicated long-range or training setup. Whether you are refining a competition rig or assembling a reliable range rifle, this barrel reflects Proof Research’s focus on quality machining and performance-driven design.

Key Features:

• Manufacturer: Proof Research
• Model: 152263 PR15 6 ARC 20 7.5TW PXT