The AR9 Left-Side Charging Bufferless Upper Assembly features a 16-inch parkerized M4-profile barrel with a 1:10 twist rate and a full-length 15-inch M-LOK handguard, designed for AR9-pattern platforms where legally permitted. This upper assembly utilizes a bufferless operating configuration and left-side charging handle for streamlined handling and compatibility with supported systems. Ghost Guns Official presents this upper with clear specifications, neutral language, and compliance-focused transparency. This listing includes the upper assembly only and does not include a lower receiver, firearm, magazine, or ammunition. Buyers are responsible for verifying platform compatibility and legal compliance prior to purchase or installation.