The Faxon Firearms AR-15 pinned gas block 5.56x45 NATO rifle barrel in a 16" Gunner profile with a nitride finish delivers a reliable, forged by precision build that suits AR-15 platforms seeking a clean, mid-length gas system and pin-to-block installation for a streamlined, secure header-to-bore integration. This Black finish, 16" barrel features a 1-8 twist for versatile stabilization with a variety of 5.56 ammunition, plus 1/2-28 muzzle threads that accommodate a wide range of muzzle devices. The Gunner contour provides a balanced, controllable muzzle rise and accuracy at typical field distances while maintaining a compact, serviceable profile ideal for patrol, sport, or competition setups. With a pinned gas block design, this barrel supports sturdy mounting and consistent gas flow, contributing to dependable cycling and reduced point-of-impact shift across extended firing sessions. The mid-length gas system harmonizes with the 16" length to optimize reliability, moderation, and overall efficiency, making it a solid choice for builders prioritizing performance, consistency, and a ready-to-assemble solution for AR-15 configurations that demand a robust, pinned gas block barrel.