The One Horse ONE OH-BR01 16" Carb Gas M4 Contr Brl 5.56 NATO is a dedicated AR-15 barrel built for shooters who want dependable performance in a proven M4 contour. This 16-inch carbine-gas barrel uses a 5.56 NATO chamber and a government-style profile to balance handling and heat management for consistent accuracy over extended strings of fire.

Optimized for AR-platform builds and upgrades, this barrel’s 1:7 twist rate is well suited to a wide range of modern 5.56 bullet weights. Whether you are assembling a new upper or refreshing a well-used rifle, the ONE OH-BR01 offers a straightforward path to restoring precision and reliability from a trusted manufacturer known for practical, shooter-focused designs.

Key Features:

• Manufacturer: One Horse
• Model: ONE OH-BR01 16" Carb Gas M4 Contr Brl 5.56 NATO
• Caliber: 5.56 NATO
• Barrel Length: 16"
• Twist Rate: 1:7
• Barrel Type: M4 contour, government profile