Ballistic Advantage 8.5" Pistol 1:5 .338 ARC Hanson Barrel - Premium Black Series

Ballistic Advantage 8.5″ Pistol 1:5 .338 ARC Hanson Barrel – Premium Black Series

The Ballistic Advantage 8.5″ .338 ARC Hanson Barrel (Premium Black Series) is purpose-built for compact AR-15 builds running heavier .338 ARC projectiles—especially where lower velocities demand faster stabilization. The 1:5 twist is optimized for short barrels and subsonic performance, helping maintain consistent accuracy and control with heavy bullets.

This barrel is machined from 416R stainless steel and finished with a QPQ (nitride/melonite) treatment for durability. BA’s Premium Black Series also adds a Nickel Boron-coated extended 350 Legend feed ramp extension for reliable cycling across a wide range of setups. As a Hanson series barrel, it includes a pinned low-profile gas block and uses BA’s proprietary Hanson profile for balanced handling. Not designed for aftermarket piston kits.

Features

• 1:5 twist optimized for heavy projectiles and subsonic stability
• 416R stainless steel with QPQ nitride/melonite finish
• Hanson profile with pinned low-profile gas block included
• Nickel Boron-coated extended 350 Legend feed ramp extension
• Pistol-length gas system for compact builds
• 5/8×24 muzzle threads for common muzzle devices and suppressor mounts
• Not compatible with aftermarket piston kits (Hanson series)

Specifications

• Finish: Nitride / Melonite (QPQ)
• Barrel Profile: Hanson
• Cartridge Compatibility: .338 ARC
• Gas Block Journal: 0.750″
• Barrel Length: 8.5″
• Gas System Length: Pistol
• Platform: AR-15
• Twist Rate: 1:5
• Muzzle Thread Pattern: 5/8×24