CMMG MK3 .308 Winchester Billet Upper Receiver - Black

Build a high-precision, heavy-duty large-frame rifle with the CMMG MK3 .308 Winchester Billet Upper Receiver. Designed specifically for AR-10 platform rifles, this upper receiver provides exceptional structural strength, strict tolerance control, and sleek angular aesthetics for custom precision rifle or benchrest builds.

Machined from premium 7075-T6 billet aluminum, the MK3 upper offers increased wall thickness and rigidity compared to standard forged uppers, minimizing receiver flex under heavy recoil. Finished in a durable Cerakote Armor Black, this receiver delivers superior protection against abrasions, corrosion, and environmental wear while providing a clean, matte tactical finish.

Key Features & Specifications:

• AR-10 / Large Frame Compatibility: Designed for CMMG MK3 and DPMS-pattern LR-308 / .308 Winchester rifle builds.
• Billet 7075-T6 Aluminum Construction: Precision-machined from solid high-strength aluminum for maximum durability and enhanced receiver rigidity.
• Cerakote Armor Black Finish: Industry-leading ceramic coating provides unmatched chemical resistance, abrasion protection, and corrosion resistance.
• Precision Machined Tolerances: Guarantees proper bolt carrier group alignment and smooth cycling across heavy caliber rounds.