The WMD Guns AR-15 Upper Assembly in .350 Legend features a 16-inch barrel with premium NiB-X coating for enhanced durability and performance.Forged AR-15 Upper Assembly in .350 Legend16-inch barrel length with muzzle brake includedHardcoat black anodized aluminum constructionNiB-X coated charging handle forward assist ejection port cover door BCG and handguardNitromet gas tube with low-profile gas blockComplete upper assembly ready for installationEngineered by WMD Guns' team of metallurgists chemists and gunsmiths this upper assembly combines advanced coatings with precision manufacturing for reliable performance in the popular .350 Legend caliber.