Faxon Firearms AR-15 5.56 NATO 7.5" 1:8 SOCOM Barrel - Black Nitride

The Faxon Firearms 7.5" SOCOM Profile AR-15 Barrel is a compact 5.56 NATO barrel purpose-built for short AR-15 pistol and SBR platforms. Machined from 4150 Chrome Moly Vanadium carbon steel, it pairs the heavy SOCOM contour with a 1:8 twist rate for consistent accuracy across a wide range of 5.56 bullet weights.

The pistol-length gas system is matched to the 7.5" length for reliable cycling in short-barreled builds, and the entire barrel is finished in black QPQ Nitride (salt bath / Melonite) for enhanced wear resistance, corrosion protection, and lubricity. The SOCOM profile delivers the rigidity needed to keep groups tight without the weight penalty of a heavier bull barrel.

Designed as a duty-grade replacement or build component, this barrel is compatible with standard AR-15 upper receiver patterns. Whether you are assembling a lightweight AR pistol, building a compact SBR project, or upgrading an existing short-barreled build, this Faxon barrel delivers the quality and consistency the company is known for.