The One Horse Pistol Gas Barrel .300 BLK 5/8x24 Thread 10.5" Black is purpose-built for shooters who want a compact .300 Blackout AR platform with dependable performance. This medium-profile 10.5" barrel features a threaded muzzle with 5/8x24 threads, a pistol-length gas system, and a durable black nitride finish over 4150 steel for long-term reliability and corrosion resistance.

With its 1:7 twist rate, this barrel is optimized for both subsonic and supersonic .300 BLK loads, making it well suited for range use, training, hunting, and suppressed shooting setups. The Mil-Spec construction provides consistent function and accuracy in AR15 pistols or SBR builds, reflecting One Horse’s focus on practical design and solid craftsmanship.

Key Features:

• Manufacturer: One Horse
• Model: Pistol Gas Barrel .300 BLK 5/8x24 Thread 10.5" Black
• Caliber: .300 Blackout / 300 AAC Blackout
• Barrel Length: 10.5"
• Gas System: Pistol Length
• Barrel Profile: Medium
• Muzzle Thread: 5/8x24
• Twist Rate: 1:7
• Material: 4150 Steel
• Finish Color: Black Nitride
• Fit: AR-15