BattleHawk Armory AR-15 16" 6mm ARC, 15" MLOK Handguard, Black Complete Upper Receiver w/ BCG & CH

Stretch your AR-15’s capability into precision centerfire territory with the BattleHawk Armory 16" 6mm ARC Complete Upper — a purpose-built, drop-in solution that turns a standard lower into a true long-range performer. Built around a precision 16.0" barrel chambered in the efficient and flat-shooting 6mm ARC, this upper blends long-range velocity, consistent tracking, and controllable recoil into a lightweight, shootable package.

The slim 15" free-float M-LOK handguard gives you clean ergonomics and plentiful real estate for optics, bipods, and mission accessories while keeping the profile snag-free. The barrel is finished for durability and stability under extended strings of fire, and the mid-length gas system smooths the gas impulse for better recoil management and component longevity. BattleHawk Armory assembles and function-tests a matched Bolt Carrier Group (BCG) and Charging Handle (CH) before shipment — this unit arrives drop-in ready so you can mount an optic, zero, and shoot.

Whether you’re building a prairie dog rig, a precision carbine for PRS-style fun, or a versatile patrol/field rifle that needs to reach out past standard 5.56 distances, the 6mm ARC upper provides a compelling mix of ballistics, modularity, and real-world practicality.

Available now at BattleHawk Armory — precision engineering for real results.

Key Features & Specifications

• Caliber: 6mm ARC — efficient, flat-shooting modern cartridge for extended-range performance

• Barrel Length: 16.0" precision barrel — optimized for velocity and repeatable accuracy

• Twist Rate: 1:7 (optimized for modern 6mm projectiles)

• Barrel Finish / Material: Durable operational finish (Black Nitride style) for corrosion and wear resistance

• Gas System: Mid-length — tuned for smooth cycling and reduced wear with premium loads

• Handguard: 15.0" free-float M-LOK — low-profile, lightweight, and accessory friendly

• Muzzle Thread: Pre-threaded for common .30/.30-caliber devices (user-installable muzzle device)

• Upper Receiver: Black anodized with forward assist & dust cover (mil-spec fitment)

• Included: Matched Bolt Carrier Group (BCG) and Charging Handle (CH) — installed and function-tested prior to shipping

• Platform Compatibility: AR-15 — drops onto standard mil-spec lowers

• Intended Use: Precision carbine builds, PRS-style fun, medium-range hunting, truck/pack rigs, and suppressed / unsuppressed adaptable platforms