Lightweight & Extremely Accurate Barrel Option For AR-10 Platforms
The Faxon Firearms AR-10 18 inch Pencil Barrels – .308 WIN is a lightweight and extremely accurate barrel option for AR builders specifically designed for AR-10 platforms. It is renowned and preferred by many AR shooters because of its ideal balance of weight and performance and is considered the lightest and most accurate option in the barrel industry.
The Faxon Firearms AR-10 18 inch Pencil Barrels are fully stress relieved and the barrel’s taper is carefully designed to remove the weight while maintaining performance. It features 1/10 twist rifling for full stabilization across all common .308 loadings and follows the .308 Winchester SAAMI specification for maximum versatility.
4150 CMV Stainless Steel With A QPQ Nitride Finish
The Faxon Firearms AR-10 18 inch Pencil Barrels – .308 WIN is built from tough 4150 CMV stainless steel with a QPQ nitride finish inside and out for enhanced resistance to corrosion and wear for an extended lifetime of use.
It is manufactured 100% in-house and goes through rigorous testing, triple stress-relieved, and 11-degree target crowned in order to ensure durability and optimum accuracy.
Specifications:
- Barrel Material: 4150 CMV
- Barrel Caliber: .308 WIN
- Barrel Twist: 1:10
- Barrel Length: 18”
- Barrel Profile: Pencil
- Barrel Gas System: Rifle
- Inside Finish: Salt Bath Nitride
- Outside Finish: Salt Bath Nitride
- Muzzle Thread: 5/8-24 TPI
- Gas Block Diameter: .750″
- Gas Block Journal Length: 1.1″
- Barrel Extension: LR-308 (DPMS Compatible)
- Weight: 1.97 lbs
- Magnetic Particle Inspected
- 11-degree Target Crown
Specifications:
| Caliber | .308 Winchester/7.62x51 NATO |
| Barrel Length | 18 inches |
| Barrel Twist Rate | 1:10 inches |
| Barrel Material | 4150 CMV |
| Muzzle Threads | 5/8/2024 |
| Barrel Finish | Black Nitride |
| Gas Block Size | .750″ Gas Block |
| Fit | AR-10 |
| Barrel Profile | Pencil |
| Barrel Gas System | Rifle |
| Gas Block Journal Length | 1.1 inches |
| Barrel Extension | M4 |
| Weight | 31.52 ounces |



















