The Faxon Firearms AR-15 PINNED GAS BLOCK 5.56x45 NATO 10.5'' SOCOM Nitride delivers a compact, rugged platform ideal for close-quarters engagement and versatile field use, featuring a 10.5" SOCOM-contoured barrel finished in durable black nitride with a precise 1-8 twist for reliable stabilization across a broad 5.56x45mm NATO loading range. This AR-15 barrel assembly is built around a carbine-length gas system for balanced cycling and smoother recoil impulse, and it comes with a pinned gas block to maintain zero and streamline installation on compatible builds. Muzzle threading is standard 1/2-28 for versatile compatibility with a wide range of common brake and suppressor options, while the 10.5" length delivers a compact profile without sacrificing velocity or reliability in tactical or sport settings. Weighing approximately 1.1 pounds, the barrels SOCOM contour increases stiffness and heat management under demanding use, supporting extended sessions on the range or in the field. With its black finish and AR-15 compatibility, this Faxon Firearms barrel assembly is an excellent choice for builders seeking a high-performance, ready-to-install solution that optimizes balance, accuracy, and handling in compact 5.56 AR platforms.