Faxon Firearms167528709
Faxon Firearms 5.56X45 Nato 16'' 1-8 Gunner Bbl W/Pinned Gas Block Nitride$216.20
Availability: In Stock
The Faxon Firearms 5.56x45 NATO 14.5" 1-8 Gunner barrel with pinned gas block is purpose-built for shooters who want a compact, duty-ready AR platform without compromise. This complete barrel assembly arrives with the gas block pre-fitted, pinned, and ready to install—eliminating one of the most time-consuming and error-prone steps of modern AR builds. Faxon's pinning method locks the gas block in place using both set screws and a pin through the barrel journal, giving you absolute confidence the system won't shift under sustained fire or hard use.
The Gunner profile is where this barrel really shines. Faxon engineered it as a middle ground between the durable Government profile and the nimble Pencil profile, delivering a rifle that handles like a carbine while staying strong enough for duty or extended training. At 1.37 pounds, it's light enough to reduce shooter fatigue over a long day at the range or in the field, yet rigid enough to maintain accuracy. The 1-in-8 twist rate stabilizes a wide range of 5.56 ammunition, from lighter varmint loads to heavier tactical rounds.
Built in-house in Cincinnati, Ohio, every Faxon barrel starts with certified 4150 CMV steel and goes through stress relief, air-gauge testing, and magnetic particle inspection. The nitride finish provides excellent corrosion resistance and durability. The 11-degree target crown ensures consistent bullet release, and individual headspace verification with precision PTG gauges means you get a barrel that functions reliably from day one. The 1/2-28 muzzle threads accept standard AR suppressors and muzzle devices, and the M4 extension fits all mil-spec upper receivers.
Whether you're building a recce rifle, a practical 3-gun gun, or a compact home-defense AR, this barrel cuts the guesswork out of gas system setup so you can focus on shooting.
| Caliber | 5.56x45 NATO |
| Barrel Length | 14.5" |
| Twist Rate | 1:8 |
| Profile | Gunner |
| Material | 4150 CMV Steel |
| Finish | Nitride |
| Rifling | Button Rifled |
| Muzzle Thread | 1/2-28 |
| Barrel Extension | M4 |
| Gas Block Diameter | .625" / .750" |
| Gas Block Journal Length | 1.9" |
| Weight | 1.37 lbs |
| Crown Style | 11-degree Target Crown |
The barrel ships with the gas block pre-installed and pinned, plus the pin itself. The gas block is hand-tightened to the barrel for safe shipping and is ready for you to finalize installation into your upper receiver.
Yes. The barrel features an M4 barrel extension that is compatible with all mil-spec AR-15 upper receivers.
The 1-in-8 twist is designed to stabilize a wide range of 5.56 NATO loads, from lighter varmint ammunition to heavier tactical and hunting rounds. This versatility makes it a solid all-purpose choice.
Pinning the gas block—in addition to set screws—prevents it from shifting or loosening under recoil and sustained fire. Faxon pre-notches the gas block journal and drills the corresponding holes, so the pinning is already engineered into the system for you.
SKU: 167528702 • Weight: 1.5oz
Availability: In Stock
The Faxon Firearms 5.56x45 NATO 14.5" 1-8 Gunner barrel with pinned gas block is purpose-built for shooters who want a compact, duty-ready AR platform without compromise. This complete barrel assembly arrives with the gas block pre-fitted, pinned, and ready to install—eliminating one of the most time-consuming and error-prone steps of modern AR builds. Faxon's pinning method locks the gas block in place using both set screws and a pin through the barrel journal, giving you absolute confidence the system won't shift under sustained fire or hard use.
The Gunner profile is where this barrel really shines. Faxon engineered it as a middle ground between the durable Government profile and the nimble Pencil profile, delivering a rifle that handles like a carbine while staying strong enough for duty or extended training. At 1.37 pounds, it's light enough to reduce shooter fatigue over a long day at the range or in the field, yet rigid enough to maintain accuracy. The 1-in-8 twist rate stabilizes a wide range of 5.56 ammunition, from lighter varmint loads to heavier tactical rounds.
Built in-house in Cincinnati, Ohio, every Faxon barrel starts with certified 4150 CMV steel and goes through stress relief, air-gauge testing, and magnetic particle inspection. The nitride finish provides excellent corrosion resistance and durability. The 11-degree target crown ensures consistent bullet release, and individual headspace verification with precision PTG gauges means you get a barrel that functions reliably from day one. The 1/2-28 muzzle threads accept standard AR suppressors and muzzle devices, and the M4 extension fits all mil-spec upper receivers.
Whether you're building a recce rifle, a practical 3-gun gun, or a compact home-defense AR, this barrel cuts the guesswork out of gas system setup so you can focus on shooting.
| Caliber | 5.56x45 NATO |
| Barrel Length | 14.5" |
| Twist Rate | 1:8 |
| Profile | Gunner |
| Material | 4150 CMV Steel |
| Finish | Nitride |
| Rifling | Button Rifled |
| Muzzle Thread | 1/2-28 |
| Barrel Extension | M4 |
| Gas Block Diameter | .625" / .750" |
| Gas Block Journal Length | 1.9" |
| Weight | 1.37 lbs |
| Crown Style | 11-degree Target Crown |
The barrel ships with the gas block pre-installed and pinned, plus the pin itself. The gas block is hand-tightened to the barrel for safe shipping and is ready for you to finalize installation into your upper receiver.
Yes. The barrel features an M4 barrel extension that is compatible with all mil-spec AR-15 upper receivers.
The 1-in-8 twist is designed to stabilize a wide range of 5.56 NATO loads, from lighter varmint ammunition to heavier tactical and hunting rounds. This versatility makes it a solid all-purpose choice.
Pinning the gas block—in addition to set screws—prevents it from shifting or loosening under recoil and sustained fire. Faxon pre-notches the gas block journal and drills the corresponding holes, so the pinning is already engineered into the system for you.
SKU: 167528702 • Weight: 1.5oz