Aero Precision 16" 5.56 NATO Upper Receiver - FDE

Upgrade your rifle build with the Aero Precision 16" 5.56 NATO Upper Receiver - FDE. Built around Aero's precision-machined M4E1 Threaded Assembled Upper Receiver, this complete upper combines rugged strength with a clean Flat Dark Earth (FDE) finish. Equipped with a 16-inch 5.56 CMV barrel and a smooth-cycling mid-length gas system with a low-profile gas block, this upper is engineered for optimal balance, reduced felt recoil, and long-term durability.

Topped off with your choice of the lightweight, ergonomic ATLAS S-ONE M-LOK Handguard, it provides ample rail space for your preferred optics, lights, and tactical accessories while keeping front-end weight to a minimum. Arriving pre-assembled straight from the factory, this upper receiver is a true drop-in upgrade for any standard AR-15 lower.

Note: This assembled upper receiver does not include a Bolt Carrier Group (BCG) or Charging Handle.

Key Features:

• M4E1 Upper Platform: Premium threaded upper receiver finished in durable FDE.
• 16" 5.56 CMV Barrel: Chrome Moly Vanadium barrel chambered in 5.56 NATO for superior accuracy and barrel life.
• ATLAS S-ONE M-LOK Rail: Slim, lightweight handguard offering comfortable ergonomics and modular mounting options.
• Mid-Length Gas System: Includes a low-profile gas block and mid-length gas tube for smoother cycling and reduced wear.
• Factory Assembled: Shipped fully assembled and ready to attach to your lower receiver setup.