Faxon® Match Series 12″ Gunner Barrel | 8.6 Blackout | Pistol Length
Balanced 8.6 Blackout Performance with Match-Grade Precision
The Faxon® Match Series 12″ Gunner Barrel chambered in 8.6 Blackout (8.6 BLK) delivers precision performance in a compact yet highly versatile large-frame AR platform. Featuring a 1:6 twist rate and pistol-length gas system, this barrel is optimized for modern suppressed and subsonic applications while maintaining reliable function across a wide range of ammunition.
416-R Stainless Steel with 5R Rifling
Machined from premium 416-R stainless steel, this Match Series barrel is engineered for superior accuracy, corrosion resistance, and long-term consistency. The 5R button rifling reduces bullet deformation and fouling, improving velocity consistency and simplifying maintenance—ideal for both suppressed shooting and extended range sessions.
QPQ Nitride Finish and NP3-Coated Extension
The barrel features a salt bath nitride (QPQ) finish inside and out to enhance surface hardness, corrosion resistance, and wear durability. A Nickel-Teflon (NP3) coated DPMS/LR-308 pattern extension improves lubricity, promotes smooth feeding, and ensures consistent lockup under demanding conditions.
Gunner Profile with Pistol-Length Gas System
Faxon’s Gunner profile combines a reinforced chamber section with a lightweight forward taper, offering an ideal balance of rigidity and weight reduction. Paired with a pistol-length gas system, this configuration supports reliable cycling and improved handling in compact AR-10 builds while maximizing velocity compared to shorter barrel options.
Precision Manufacturing and Quality Assurance
Each barrel is Magnetic Particle Inspected (MPI) for structural integrity and features a recessed 11° target crown to protect the muzzle and preserve accuracy. The .875″ gas block journal and extended journal length provide a stable mounting surface for gas system components.
Faxon® Match Series 12″ 8.6 Blackout Barrel Specifications
- Platform: AR-10 / Large Frame AR (DPMS/LR-308 Pattern)
- Caliber: 8.6 Blackout (8.6 BLK) — SAAMI Certified
- Barrel Length: 12″
- Twist Rate: 1:6
- Material: 416-R Stainless Steel
- Rifling: 5R Button Rifled
- Profile: Gunner
- Gas System: Pistol Length
- Gas Block Diameter: .875″
- Gas Block Journal Length: 1.9″
- Muzzle Threads: M18x1.5 (Tapered Shoulder, Adapter Included)
- Finish: Salt Bath Nitride (QPQ) Inside & Out
- Extension: DPMS/LR-308 Pattern — NP3 Coated
- Inspection: Magnetic Particle Inspected (MPI)
- Crown: Recessed 11° Target Crown
- Weight: 2 lbs
- Made In: U.S.A.
Optimized for Suppressed and Versatile 8.6 BLK Builds
The Faxon® 12″ 8.6 Blackout Match Series Gunner Barrel offers an ideal balance between compact maneuverability and increased velocity over shorter barrels. The 1:6 twist rate stabilizes a wide range of projectiles—from heavy subsonic rounds to lighter supersonic loads—making it well suited for suppressed shooting, hunting, training, and hard-use applications.
Compatibility Notice: This barrel is designed for DPMS/LR-308 pattern large-frame AR platforms. Function and tuning may vary depending on ammunition, buffer system, and suppressor configuration. Always verify headspace with proper gauges and confirm muzzle device alignment before use. For full specifications, refer to the manufacturer’s product page at Faxon Firearms.
Product Information
| Length | 8" |
|---|---|
| Weight | 32oz |
| Finish | QPQ Nitride |
| Platform | AR10 (DPMS) |
| Series | Duty |
| Material | 416R Stainless Steel |
| Caliber | 8.6 Blackout |
| Twist Rate | 1:6 |
| Manufacturer | Faxon |
| Made in USA | Yes |
| Gas System | Pistol |
| Compatibility | Standard DPMS AR10 Components |
| Muzzle Thread | M18X1.5 |
| Gas Block Diameter | .875 |















