The Proof Research PR15 Carbon Fiber AR Barrel, .338 ARC, 16.00" Threaded Barrel is built for shooters who want a premium, lightweight upgrade for their AR-15 platform. This 16-inch barrel combines a stainless steel core with a carbon fiber wrap to deliver excellent rigidity and heat resistance while keeping overall weight down. The threaded muzzle makes it easy to pair with brakes or suppressors, and the precise chambering in .338 ARC supports modern, high-BC projectiles for extended-range performance.
Featuring a pistol-length gas system and a .750 gas journal, the PR15 barrel integrates smoothly with common AR-15 gas blocks and components. Its 1:8 twist rate is optimized to stabilize a broad range of bullet weights, making it suitable for range work, hunting, and general-purpose shooting where accuracy and consistency matter. This barrel is an excellent choice for building a refined upper that balances mobility with precision, backed by Proof Research’s reputation for meticulous craftsmanship and innovation in barrel technology.
- Manufacturer: Proof Research
- Model: PR15 .338 ARC 16" Carbon Fiber AR Barrel
- Caliber: .338 ARC
- Barrel Length: 16 inches
- Twist Rate: 1:8
- Gas Length: Pistol
- Gas Journal: .750
| __Twist Rate | 1:8 |
| __Material | Carbon Fiber, Stainless Steel |
| __Rifling | Other |
| __Model | PR15 .338 ARC 16" Carbon Fiber AR Barrel |
| __Caliber | .338 ARC |
| __Capacity | NA |
| __Barrel Length | 16.00" |
| __Optic Footprint | NA |
| __Action | NA |
