Faxon 10.5" 5.56 NATO Pencil Barrel w/ Pinned Gas Block

Faxon 10.5″ 5.56 NATO Pencil Barrel w/ Pinned Gas Block

The Faxon 10.5″ 5.56 NATO Pencil Barrel w/ Pinned Gas Block delivers lightweight performance without compromise. Constructed from 4150 Chrome Moly Vanadium (CMV) steel and finished in QPQ Nitride for superior corrosion resistance and surface hardness, this barrel is engineered for reliability and durability. With an M4 feed ramp extension and full in-house manufacturing, Faxon guarantees quality and precision at every step. Each barrel is headspace-checked using custom-hardened gauges to ensure proper chamber fit and function.

This 10.5″ Pencil Barrel features a Carbine-length gas system and comes pre-equipped with a pinned low-profile gas block. The gas block journal is pre-notched and pre-drilled, individually matched to the included gas block for a secure, rock-solid installation. This added reinforcement prevents shifting or loosening over time—an ideal feature for high-volume shooters or suppressed builds.

Faxon’s Pencil profile barrels are some of the lightest available on the market. The thin contour minimizes front-end weight, improving maneuverability without sacrificing accuracy or heat resistance. The result is a barrel that’s fast to handle and dependable under pressure—perfect for pistol builds, SBRs, or anyone wanting to shed ounces from their rifle setup.

• Caliber: 5.56 NATO
• Barrel Length: 10.5″
• Gas System: Carbine-Length
• Profile: Pencil
• Material: 4150 CMV Steel
• Finish: QPQ Nitride
• Feed Ramps: M4 Extension
• Gas Block Journal: 0.625″ Pre-notched
• Includes: Pinned Low-Profile Gas Block

Faxon Pencil barrels are trusted by industry leaders like Robar, Kaiser US, and 2A Armament for their unmatched weight-to-performance ratio. Whether you’re building a compact duty weapon or a lightweight competition rifle, the Faxon 10.5″ Pencil Barrel is ready to perform.

If you have any questions about the Faxon 10.5″ 5.56 NATO Pencil Barrel w/ Pinned Gas Block, we are always here to help!