
Availability: In Stock
The Faxon Firearms 5.56 NATO 16" 1-8 twist pencil barrel with flash hider is built for shooters who refuse to compromise between handling and capability. A pencil profile barrel shaves weight without sacrificing the versatility that makes AR-15 platform rifles so practical—whether you're running drills at the range, hunting, or building a lightweight do-it-all rifle. The 1-8 twist rate handles everything from 55-grain varmint rounds to heavier service loads, making this a genuinely flexible choice for 5.56 shooters.
What sets this barrel apart is its integral flash hider, which means you keep full control of your setup. Unlike traditional barrels that force you into a single muzzle config or require a gunsmith to pin and weld, this design lets you swap components and reconfigure your rifle on your own. The gas block comes off, the barrel nut comes off—you build it your way, when you want. The mid-length gas system is forgiving and keeps the action smooth across various ammunition weights and conditions.
The narrow profile of the pencil design comes through both forward and aft of the gas block, cutting every ounce of unnecessary weight. Faxon magnetically particle inspected the barrel to catch internal defects before they matter, and the M4 extension ensures rock-solid compatibility with standard upper receivers. At 16" total length with the integral device installed, you get a barrel that's genuinely handy in tight quarters while staying on the right side of federal regulations.
| Caliber | 5.56 NATO |
| Barrel Length | 16" (total legal length with integral muzzle device) |
| Rifled Length | 14.5" |
| Twist Rate | 1:8 |
| Profile | Pencil |
| Gas System | Mid-length |
| Gas Block Diameter | .625" |
| Barrel Extension | M4 |
| Muzzle Device | Integral flash hider |
The 1-8 twist is versatile across the 5.56 NATO spectrum. It handles lighter varmint and target rounds comfortably and is also stable with heavier service and hunting loads, making it a practical all-purpose choice.
Yes. The integral flash hider is part of the barrel assembly, and unlike pinned-and-welded setups, you can fully disassemble the gas block and barrel nut to reconfigure your rifle as needed. This gives you the freedom to adjust your setup without a gunsmith.
Yes. The barrel features an M4 extension, which is the standard for AR-15 upper receivers, ensuring straightforward compatibility with most modern uppers.
Pencil barrels reduce weight compared to heavier profiles, making the rifle easier to handle and maneuver—especially valuable in hunting, tactical, or lightweight build scenarios. Faxon's design maintains the narrow profile fore and aft of the gas block to maximize weight savings without compromising function.

SKU: 167526629 • Weight: 1.5oz





Availability: In Stock
The Faxon Firearms 5.56 NATO 16" 1-8 twist pencil barrel with flash hider is built for shooters who refuse to compromise between handling and capability. A pencil profile barrel shaves weight without sacrificing the versatility that makes AR-15 platform rifles so practical—whether you're running drills at the range, hunting, or building a lightweight do-it-all rifle. The 1-8 twist rate handles everything from 55-grain varmint rounds to heavier service loads, making this a genuinely flexible choice for 5.56 shooters.
What sets this barrel apart is its integral flash hider, which means you keep full control of your setup. Unlike traditional barrels that force you into a single muzzle config or require a gunsmith to pin and weld, this design lets you swap components and reconfigure your rifle on your own. The gas block comes off, the barrel nut comes off—you build it your way, when you want. The mid-length gas system is forgiving and keeps the action smooth across various ammunition weights and conditions.
The narrow profile of the pencil design comes through both forward and aft of the gas block, cutting every ounce of unnecessary weight. Faxon magnetically particle inspected the barrel to catch internal defects before they matter, and the M4 extension ensures rock-solid compatibility with standard upper receivers. At 16" total length with the integral device installed, you get a barrel that's genuinely handy in tight quarters while staying on the right side of federal regulations.
| Caliber | 5.56 NATO |
| Barrel Length | 16" (total legal length with integral muzzle device) |
| Rifled Length | 14.5" |
| Twist Rate | 1:8 |
| Profile | Pencil |
| Gas System | Mid-length |
| Gas Block Diameter | .625" |
| Barrel Extension | M4 |
| Muzzle Device | Integral flash hider |
The 1-8 twist is versatile across the 5.56 NATO spectrum. It handles lighter varmint and target rounds comfortably and is also stable with heavier service and hunting loads, making it a practical all-purpose choice.
Yes. The integral flash hider is part of the barrel assembly, and unlike pinned-and-welded setups, you can fully disassemble the gas block and barrel nut to reconfigure your rifle as needed. This gives you the freedom to adjust your setup without a gunsmith.
Yes. The barrel features an M4 extension, which is the standard for AR-15 upper receivers, ensuring straightforward compatibility with most modern uppers.
Pencil barrels reduce weight compared to heavier profiles, making the rifle easier to handle and maneuver—especially valuable in hunting, tactical, or lightweight build scenarios. Faxon's design maintains the narrow profile fore and aft of the gas block to maximize weight savings without compromising function.
SKU: 167526629 • Weight: 1.5oz
