Faxon Firearms  |  SKU: RSR-FXFF556BCGCNITRIDE-LW

Faxon Firearms - Superfinished 5.56 Gunner Lightweight BCG - Nitride

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Description

The Faxon Superfinished 5.56 Gunner Lightweight Bolt Carrier Group is engineered to fill a performance gap in the lightweight BCG market. It delivers reduced mass without compromising strength, durability, or reliability, making it ideal for fast, smooth, competition-ready AR-15 platforms. At just 8.5 ounces complete, this BCG reduces reciprocating mass to improve cycling speed, reduce recoil impulse, and enable faster follow-up shots. Faxon achieves this through careful geometry and an optimized cam path, maintaining critical material strength.

All components are salt bath nitrided to increase surface hardness, reduce friction, and provide excellent corrosion resistance. The carrier body receives Faxon's proprietary Superfinish to further reduce fouling and enhance smoothness of operation. Faxon recommends using an adjustable gas block to properly tune gas flow and ensure optimal function.

Key Features

  • Weight: 8.5 oz complete
  • Material: 9310 Tool Steel Bolt
  • Finish: Salt Bath Nitrided Bolt & Carrier
  • Superfinished Carrier Body
  • Magnetic Particle Inspection (MPI)
  • Full MIL-SPEC Heat Treatment & Shot Peening
  • Back of Lugs Chamfered for Reliable Cycling
  • Extractor: S7
  • Spring, Insert, & "Crane" O-Ring Installed
  • Grade 8 Gas Key Fasteners, Fully Staked
  • Compatibility: M16 Pattern – Full Auto Compatible
  • FRT/FRS Compatible
  • Caliber Compatibility: .300 BLK / 300 Blackout
  • Forward Assist Serrations
  • Laser-Engraved Faxon Shield (post-QC)

Specifications

  • Type: Bolt Carrier Group
  • Platform: AR15
  • Caliber: 5.56 NATO
  • Color: Black
  • Compatible Calibers: 5.56 NATO, .223 Wylde, .300 BLK, 350 Legend

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Frequently Asked Questions

What makes the Faxon Superfinished 5.56 Gunner Lightweight BCG unique compared to standard BCGs?

The Faxon Superfinished 5.56 Gunner Lightweight BCG stands out due to its reduced mass and enhanced cycling speed. At just 8.5 ounces, it is engineered to minimize reciprocating mass, which improves cycling speed and reduces recoil impulse. This makes it particularly suitable for competition-ready AR-15 platforms where rapid follow-up shots are crucial. The BCG achieves this performance without sacrificing strength or reliability, thanks to its optimized cam path and salt bath nitride finish that enhances surface hardness and corrosion resistance.

How does the superfinish on the Faxon BCG improve its performance?

The superfinish on the Faxon BCG significantly enhances its performance by reducing friction and fouling. This proprietary finish results in a smoother operation, which contributes to more reliable cycling and easier maintenance. By minimizing fouling, the superfinish ensures that the BCG remains cleaner for longer periods, reducing the frequency of cleaning required and enhancing overall firearm reliability during extended use.

Why is an adjustable gas block recommended with this BCG?

An adjustable gas block is recommended with the Faxon 5.56 Gunner Lightweight BCG to fine-tune the gas flow for optimal performance. The lightweight nature of this BCG means that it can cycle faster, and an adjustable gas block allows you to control the amount of gas entering the system. This adjustment helps in achieving the perfect balance between cycling speed and reliability, preventing issues like over-gassing or under-gassing, which can affect the firearm's performance.

What calibers are compatible with the Faxon Superfinished 5.56 Gunner Lightweight BCG?

The Faxon Superfinished 5.56 Gunner Lightweight BCG is compatible with several calibers, including 5.56 NATO, .223 Wylde, .300 Blackout, and 350 Legend. This versatility makes it a suitable choice for various AR-15 builds, allowing users to switch between different calibers without needing multiple BCGs. This compatibility is particularly beneficial for those who want to maximize their firearm's versatility across different shooting scenarios.

How does the weight of the Faxon BCG affect shooting performance?

The lightweight design of the Faxon BCG, at just 8.5 ounces, positively impacts shooting performance by reducing recoil and improving cycling speed. This reduction in reciprocating mass allows for faster follow-up shots, which is advantageous in both competitive and tactical shooting environments. However, users should ensure that their firearm's gas system is properly tuned to accommodate the lighter BCG to avoid potential cycling issues.

What is the significance of the magnetic particle inspection (MPI) process for this BCG?

Magnetic particle inspection (MPI) is a critical quality assurance process used to detect surface and subsurface defects in the BCG. This process ensures that the Faxon BCG is free from material flaws that could compromise its performance or safety. By undergoing MPI, the BCG is verified for structural integrity, providing users with confidence in its reliability under various operational conditions.

How does the Faxon BCG enhance the reliability of cycling in AR-15 platforms?

The Faxon BCG enhances cycling reliability through its optimized cam path and chamfered lug design. These features ensure smooth operation and reduce the likelihood of jams or misfeeds. The chamfered lugs help in reliable cycling by facilitating smoother engagement and disengagement with the chamber, which is crucial for maintaining consistent performance in high-stress situations.

What materials and treatments are used in the construction of the Faxon BCG?

The Faxon BCG is constructed using 9310 tool steel for the bolt and features a salt bath nitride finish. This combination provides excellent strength, durability, and corrosion resistance. The nitride finish enhances surface hardness and reduces friction, contributing to the BCG's reliability and longevity. Additionally, the bolt undergoes full MIL-SPEC heat treatment and shot peening, further ensuring its robustness and performance.

Can the Faxon Superfinished BCG be used in full-auto AR-15 platforms?

Yes, the Faxon Superfinished BCG is compatible with M16 pattern full-auto AR-15 platforms. This compatibility is due to its design and construction, which meet the necessary specifications for full-auto operation. Users should ensure that their firearm's configuration complies with all legal requirements for full-auto capabilities.

What are the benefits of the S7 extractor and Crane O-Ring in the Faxon BCG?

The S7 extractor and Crane O-Ring in the Faxon BCG enhance extraction reliability and longevity. The S7 tool steel used for the extractor is known for its toughness and wear resistance, ensuring consistent performance even under high-stress conditions. The Crane O-Ring provides additional tension, improving the extractor's grip on the cartridge case, which is essential for reliable extraction and ejection of spent casings.