Faxon Firearms  |  SKU: RSR-FX15A58M11NGQ
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Faxon Firearms - Duty Series Gunner Profile 11.5" AR-15 Barrel

Regular price $18549
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Description

⚠ STATE RESTRICTIONS: This item cannot be shipped to Connecticut, Illinois, New Jersey or Washington. Orders shipping to these states will be cancelled and issued a full refund.

The Faxon Duty Series Gunner Profile 11.5" Mid-Length 5.56 NATO AR-15 Barrel is designed for builders and law enforcement teams seeking a high-performance barrel for suppressed SBRs. This barrel features a unique mid-length gas system on an 11.5" barrel, providing a softer bolt unlock and reduced gas blowback when suppressed. Crafted from 4150 CMV steel and finished with a salt-bath QPQ nitride, this barrel offers exceptional hardness and corrosion resistance.

With a 1:8 twist rate and Gunner profile, the barrel maintains a balance between weight and performance. The Government taper behind the gas block and the straight .625" section ahead ensure optimal mass distribution. This barrel is machined in Greater Cincinnati, Ohio, and comes with an M4 feed-ramp extension installed and headspaced for immediate use.

Key Features

  • Material: 4150 CMV bar stock
  • Finish: Salt-bath QPQ nitride, bore and exterior
  • Gas System: Mid-length; .110" port, reamed to size
  • Profile: Gunner: .980" chamber journal, Government taper, .625" journal
  • Twist Rate: 1:8 RH, 6-groove button rifling
  • Weight: 1.14 lb
  • Muzzle Thread: 1/2x28 UNEF-2A
  • Extension: M4 feed ramps, black oxide, torqued to 150 ft-lb, pinned
  • Made in: Greater Cincinnati, Ohio, USA
  • Warranty: Faxon Lifetime Guarantee

Specifications

  • Cartridge/Chamber: 5.56 NATO (fires 5.56 NATO and .223 Rem)
  • Length: 11.5" (11.505" on the print)
  • Gas Block Diameter: .625"
  • Gas Journal: .625" (.6240–.6247"), 1.5" long
  • Ammunition: 55 to 77 gr; 5.56 NATO and .223 Remington
  • Headspace: 100%, 5.56 go/no-go gauge after assembly

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Frequently Asked Questions

What are the benefits of the mid-length gas system on the Faxon Duty Series Gunner Profile barrel?

The mid-length gas system on the Faxon Duty Series Gunner Profile barrel provides a smoother shooting experience. This system helps reduce the felt recoil and gas blowback, especially when using a suppressor. The softer bolt unlock reduces wear on the internal components, enhancing the longevity of your firearm. This configuration is particularly beneficial for law enforcement or tactical scenarios where rapid follow-up shots are necessary. While the mid-length system offers these advantages, it may not be as common in shorter barrels, so ensure compatibility with your existing setup.

How does the Gunner profile affect the performance of the barrel?

The Gunner profile of the Faxon Duty Series barrel is designed to balance weight and performance. By combining a Government taper behind the gas block with a straight .625" section ahead, the barrel optimizes mass distribution. This results in a lighter barrel that still maintains rigidity and accuracy. The profile is ideal for shooters who need to maneuver quickly without sacrificing precision. However, lighter barrels may heat up faster during extended firing sessions, so it's important to manage your shooting pace accordingly.

What materials and finishes are used in the construction of this barrel?

The Faxon Duty Series Gunner Profile barrel is crafted from 4150 CMV steel and finished with a salt-bath QPQ nitride. This combination provides exceptional hardness and corrosion resistance, ensuring the barrel's durability in various conditions. The 4150 CMV steel is known for its strength and ability to withstand high temperatures, making it suitable for sustained firing. The QPQ nitride finish further enhances the barrel's surface, reducing friction and wear. These materials and finishes ensure reliability, but regular maintenance is still recommended to preserve the barrel's performance over time.

Is the Faxon Duty Series Gunner Profile barrel suitable for suppressed shooting?

Yes, the Faxon Duty Series Gunner Profile barrel is well-suited for suppressed shooting. The mid-length gas system is specifically designed to reduce gas blowback when using a suppressor. This feature minimizes the amount of gas directed back towards the shooter, improving comfort and reducing the need for additional adjustments. While the barrel is optimized for suppressed use, it's important to ensure your suppressor is compatible with the barrel's 1/2x28 UNEF-2A muzzle thread to achieve the best results.

What is the significance of the 1:8 twist rate in this barrel?

The 1:8 twist rate in the Faxon Duty Series Gunner Profile barrel allows for versatile ammunition compatibility. This twist rate is capable of stabilizing a wide range of bullet weights, from 55 to 77 grains, making it suitable for both 5.56 NATO and .223 Remington cartridges. This versatility is advantageous for shooters who may need to switch between different types of ammunition based on their mission or training requirements. However, for optimal accuracy, it's recommended to test various loads to see which performs best with your specific setup.

How does the barrel's construction support immediate use upon installation?

The Faxon Duty Series Gunner Profile barrel is designed for immediate use with its M4 feed-ramp extension and precise headspacing. The M4 feed ramps ensure reliable feeding of ammunition, which is crucial in high-pressure situations. Additionally, the barrel is headspaced using 5.56 go/no-go gauges, guaranteeing proper chamber dimensions and safe operation. This meticulous construction allows users to install the barrel and begin shooting with confidence, knowing that it meets stringent safety and performance standards.

What are the potential trade-offs of using a shorter 11.5" barrel?

Using a shorter 11.5" barrel like the Faxon Duty Series Gunner Profile offers increased maneuverability and reduced weight. These features are beneficial in close-quarters environments and for tactical applications where speed is essential. However, shorter barrels can result in reduced muzzle velocity and energy, potentially affecting terminal performance at longer ranges. Additionally, the increased muzzle blast and noise can be more pronounced, especially when not using a suppressor. It's important to weigh these factors based on your specific needs and intended use.

How does the barrel's weight impact its handling and performance?

Weighing in at 1.14 pounds, the Faxon Duty Series Gunner Profile barrel is designed to enhance handling without sacrificing performance. The lighter weight makes the firearm easier to carry and maneuver, which is particularly advantageous in dynamic shooting scenarios. Despite its reduced weight, the barrel maintains sufficient rigidity to ensure accuracy. However, users should be aware that lighter barrels may heat up more quickly during rapid firing, which can affect accuracy if not managed properly.

What ammunition is recommended for use with this barrel?

The Faxon Duty Series Gunner Profile barrel is chambered for 5.56 NATO and can also fire .223 Remington ammunition. It is recommended to use ammunition with bullet weights ranging from 55 to 77 grains for optimal performance. This range allows for flexibility in choosing rounds based on your specific shooting needs, whether for training, competition, or tactical applications. Always ensure that the ammunition used is of high quality and appropriate for the barrel's specifications to maintain safety and performance.

Why is the barrel manufactured in Greater Cincinnati, Ohio significant?

The manufacturing of the Faxon Duty Series Gunner Profile barrel in Greater Cincinnati, Ohio, underscores the commitment to quality and craftsmanship. Producing the barrel domestically allows for stringent quality control and adherence to American manufacturing standards. This ensures that each barrel meets the high-performance expectations of both civilian and law enforcement users. Additionally, supporting American manufacturing contributes to local economies and ensures that products are made with the utmost attention to detail and precision.