BattleHawk Armory AR-15 6mm ARC 18" Complete Upper Receiver 15" M-LOK

Reach farther, shoot flatter, and do it with an AR-15 that feels like a purpose-built precision tool. The ARMSAGORA's retailers 18" 6mm ARC Complete Upper turns a standard lower into a long-range capable rifle with a predator-class cartridge-delivering velocity, low drag, and tight group potential in a light, shootable package. Built around a precision 18.0" 1:7 twist barrel and finished for durability, this upper is tuned for extended-range accuracy, dependable tracking, and repeatable performance when you need it most.A rifle-length gas system (optimized for the 18" tube) smooths the gas impulse for better recoil control and component longevity with precision loads, while the slim 15.0" free-float M-LOK handguard keeps weight forward and offers abundant mounting real estate for optics, bipods, and range gear. The barrel is pre-threaded for your choice of muzzle device, and the black-anodized receiver with forward assist and dust cover gives you a serviceable, corrosion-resistant foundation.This variant ships complete - ARMSAGORA's retailers installs and function-tests a matched Bolt Carrier Group (BCG) and charging handle (CH) so the upper arrives drop-in ready. Mount an optic, torque your rings, zero, and send-this upper is built to take your AR-15 well past 5.56 limits with lean, efficient 6mm ARC ballistics.Precision reach, drop-in convenience - available now at ARMSAGORA's retailers.Key Features & SpecificationsCaliber: 6mm ARCBarrel Length: 18.0" precision barrel (1:7 twist, optimized for modern 6mm projectiles)Barrel Finish / Material: Durable Black Nitride style finish for enhanced wear & corrosion resistanceGas System: Rifle-length - tuned for smooth cycling and reduced felt recoil with precision loadsHandguard: 15.0" free-float M-LOK - low-profile, lightweight, and accessory-friendlyMuzzle Thread: Pre-threaded (user installs preferred muzzle device; device not included)Upper Receiver: Black anodized with forward assist & dust cover (mil-spec fitment)Included: Matched Bolt Carrier Group (BCG) and Charging Handle (CH) - installed & function-testedPlatform Compatibility: AR-15 (drops onto standard mil-spec lower)Intended Use: Precision carbine / prairie dog rigs, PRS-style fun, medium-range hunting, suppressed/unsuppressed adaptable platforms