The Faxon Firearms 5.56×45 NATO Barrel is a 16-inch Pencil Contour bare barrel from FAXON FIREARMS (brand part no. 15A58M16NPQ-APGB) that ships with a low-profile gas block already pinned in place. Pinning the gas block permanently secures it to the barrel, saving a separate install step and eliminating any risk of it shifting under recoil. Its 1-in-8 twist rate handles a wide range of 5.56/.223 bullet weights, and at 16 inches it clears the federal minimum rifle barrel length.

Key Specifications

• It is chambered in 5.56×45 NATO.
• It measures 16 inches long, clearing the federal minimum rifle barrel length.
• It ships with a pinned, low-profile gas block already installed.
• It carries Faxon’s Pencil Contour profile.
• It uses a 1-in-8 twist rate for a wide range of 5.56/.223 bullet weights.

Frequently Asked Questions

Do I need to install the gas block myself? No, the low-profile gas block is already pinned in place at the factory.

Why pin a gas block instead of using set screws? Pinning permanently secures the block to the barrel so it cannot shift or walk under recoil, which set screws alone can allow over time.

Buy the Faxon Firearms 5.56×45 NATO 16in Pencil Barrel with Pinned Gas Block Nitride

Order the Faxon Firearms 5.56×45 NATO 16in Pencil Barrel with Pinned Gas Block Nitride through our rifle parts selection at Schaefer Defense and we will ship it fast, fully insured, from our Lubbock, TX gun shop.