BHA Precision AR-15 12.5" 338 ARC, 12" MLOK Handguard, No MB, Black Complete Upper Receiver w/ BCG & CH

Move your AR into true long-range territory without sacrificing compactness. The BHA Precision 12.5" .338 ARC Complete Upper delivers high-energy .338 ARC performance in a maneuverable package built for precision, suppressor compatibility, and mission flexibility. Centered on a 12.5" 1:8 twist Black Nitride barrel, this upper balances velocity and pellet stabilization for modern .338 projectiles while remaining short enough for tight rigs and fast handling.

The assembly features a pistol-length adjustable gas system so you can tune the rifle for suppressed or unsuppressed operation and a slim 12.0" free-float M-LOK handguard that provides accessory real estate without unnecessary weight. The barrel is pre-threaded (5/8x24) but this variant ships without a muzzle device, giving you the freedom to fit your preferred brake, flash hider, or suppressor adapter. BHA installs and function-tests a matched BCG and charging handle, so this upper arrives drop-in ready — just choose your lower, optic, and muzzle device and you’re on target.

Compact, capable, and configurable — the BHA 12.5" .338 ARC upper is built for serious shooters who want big-bore ballistics on an AR platform. Available now at BattleHawk Armory.

Key Features & Specifications

• Caliber: .338 ARC

• Barrel Length: 12.5" — precision 1:8 twist, chrome-moly, Black Nitride finish for wear & corrosion resistance

• Gas System: Pistol-length, adjustable — tune for suppressed/unsuppressed use

• Handguard: 12.0" free-float M-LOK — lightweight, low-profile mounting surface

• Muzzle Thread: 5/8x24 (pre-threaded) — NO MUZZLE DEVICE INCLUDED (ships blank; user installs preferred device)

• Upper Receiver: Black anodized with forward assist & dust cover

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

• Platform Compatibility: AR-15 (drops onto mil-spec lower)

• Finish: Durable operational black coatings and Black Nitride barrel treatment

• Intended Use: Maneuverable long-range / predator builds, short-barrel precision rigs, suppressed AR platforms, truck/pack guns