Proof Research AR-10/LR-308 6.5 Creedmoor CAMGAS Barrel w/ Gas Tube, 1:8 Twist Stainless Steel
Pete Rickard
Building a long-range 6.5 Creedmoor AR-10? The Brownells AR-308 6.5 Creedmoor 24" barrel with 1-8 twist delivers the precision and durability you need for distance shooting on an AR platform. Machined from 416-R certified stainless steel by U.S. craftsmen, this heavy-profile barrel is engineered to manage heat and maintain accuracy shot after shot. Whether you're dialing in at the range or hunting at distance, this barrel is built to perform.
The 24-inch length and 1-8 twist rate are optimized for 6.5 Creedmoor ballistics, stabilizing standard and heavier projectiles with the velocity and precision long-range shooters demand. The rifle-length gas system works with standard AR-10 components, making integration straightforward for builders familiar with the platform. An 11-degree target crown preserves accuracy by protecting the muzzle crown, one of the most critical surfaces on a precision barrel.
Threaded for suppression with 5/8x24 TPI, this barrel is ready for a can if that's part of your setup. The heavy contour absorbs and dissipates heat better than lighter profiles, keeping your poi stable during extended shooting sessions. Every barrel is individually inspected using magnetic particle inspection, so you know what you're getting is sound before it leaves the factory.
Compatible with AR-10 and LR-308 platform builds, this Brownells barrel fits the tried-and-true AR platform ecosystem. Note that you'll need a .750" gas block to complete the install.
| Caliber | 6.5 Creedmoor |
| Barrel Length | 24" |
| Twist Rate | 1-8" |
| Profile | Heavy |
| Material | 416-R Certified Stainless Steel |
| Gas System | Rifle-length |
| Muzzle Threading | 5/8x24 TPI |
| Crown | 11-degree target crown |
| Required Gas Block Size | .750" |
| Platform Compatibility | AR-10, LR-308 |
| Finish | Black |
This Brownells barrel is designed for AR-10 and LR-308 platform builds. You'll need a .750" gas block to complete the installation.
Yes. The barrel is threaded with 5/8x24 TPI, the standard suppressor mount for rifles in this caliber and platform class.
The 1-8" twist rate is optimized for 6.5 Creedmoor and will stabilize standard and heavier projectiles in that caliber across typical hunting and range velocities.
The heavy contour absorbs and dissipates heat better than lighter profiles, which helps maintain point-of-impact consistency during extended shooting sessions and supports the accuracy standards expected in precision rifle builds.