The Proof Research AR-Style Carbon Fiber Barrel, 6mm ARC, 16.00" Threaded, Stainless/Carbon Finish is built around a match-grade 416R stainless steel core that is turned down and wrapped in aerospace-grade carbon fiber. This 16-inch threaded barrel delivers the performance of a heavy match tube while remaining dramatically lighter, offering a smooth rifle-length gas system and a .750" gas block journal for easy integration with standard AR-15 components.
This PR15 barrel is ideal for precision-focused range work, competition, and hunting where a lighter rifle helps reduce fatigue without sacrificing accuracy. The 1:7.5 twist rate is optimized for modern high-BC 6mm ARC bullets, while 5/8x24 muzzle threads accept popular brakes and suppressor mounts. Shooters looking to upgrade their AR-15 with consistent accuracy, improved heat dissipation, and refined handling will appreciate Proof Research’s attention to detail and reputation for innovation in premium barrel design.
- Manufacturer: Proof Research
- Model: PR15 AR-Style Barrel
- Caliber: 6mm ARC
- Barrel Length: 16"
- Twist Rate: 1:7.5
- Gas System Length: Rifle
- Gas Block Diameter: 0.750"
| __Material | 416R Stainless Steel, Carbon Fiber |
| __Twist Rate | 1:7.5 |
| __Rifling | Other |
| __Caliber | 6mm ARC |
| __Model | PR15 Carbon Fiber AR Barrel |
| __Capacity | NA |
| __Barrel Length | 16.00" |
| __Optic Footprint | NA |
| __Action | NA |
