Proof Research Stainless Steel PR15 Barrel – 338 ARC | 10" Pistol | .750 Gas Block | 1-8 Twist | 144848

The Proof Research Stainless Steel PR15 Barrel is a high-performance, precision-machined barrel designed for AR-15 pistol builds chambered in 338 ARC. This 10-inch barrel offers an excellent balance of compactness and ballistic performance, making it ideal for short-barreled pistol configurations. Manufactured from premium stainless steel, this barrel delivers outstanding accuracy, durability, and corrosion resistance. With a .750" gas block journal and a 1-8 twist rate optimized for the 338 ARC, this Proof Research barrel provides the quality and precision that serious shooters expect from one of the industry’s leading barrel manufacturers.

Key Features of the Proof Research 338 ARC Stainless Steel Barrel

• Premium Stainless Steel – High-quality stainless steel construction for superior strength, accuracy, and corrosion resistance.
• 338 ARC Chambering – Powerful cartridge offering excellent terminal performance in a compact AR-15 platform.
• 10" Pistol Length – Ultra-compact barrel ideal for AR pistols and highly maneuverable builds.
• .750" Gas Block Journal – Standard diameter compatible with most low-profile and adjustable gas blocks.
• 1-8 Twist Rate – Optimized twist for stabilizing 338 ARC projectiles across a wide range of bullet weights.
• PR15 Platform – Designed specifically for standard AR-15 upper receivers and pistol configurations.
• Precision Machined – Manufactured to tight tolerances for consistent accuracy and reliable performance.

Why Choose the Proof Research 338 ARC Stainless Steel Barrel?

The Proof Research Stainless Steel PR15 Barrel is an excellent choice for builders looking to create a compact, high-performance 338 ARC pistol. The 10-inch length makes this barrel one of the shortest options available for the 338 ARC, maximizing maneuverability while still delivering impressive ballistic performance. Proof Research is renowned for producing some of the most accurate barrels in the industry, and this stainless steel model continues that tradition. The 1-8 twist rate is perfectly matched to the 338 ARC, ensuring excellent stabilization and accuracy. The .750" gas block journal provides flexibility when choosing gas system components. Whether you’re building a compact home defense pistol, a lightweight truck gun, or a short-range precision pistol, this Proof Research barrel offers the durability, accuracy, and quality needed for a reliable and high-performing firearm.

This barrel is an excellent choice for AR-15 pistol builds, SBRs, and compact tactical platforms.

Specifications

• Manufacturer: Proof Research
• Model: Stainless Steel PR15 Barrel
• Model Number: 144848
• UPC: 843068144848
• Caliber: 338 ARC
• Barrel Length: 10"
• Gas Block Journal: .750"
• Twist Rate: 1-8
• Configuration: Pistol
• Material: Stainless Steel

Ideal Applications for the Proof Research 338 ARC Barrel

This barrel is ideal for AR-15 pistol builds, short-barreled configurations, home defense, and compact tactical applications.

Experience premium performance with the Proof Research Stainless Steel Barrel. A 10" 338 ARC barrel designed for PR15 pistol platforms.The End ```