This AR-15 complete upper is built to the same high-standards as the upper receiver featured in the Aero M16A4 special edition complete rifle. Designed for performance and durability, it includes a 20 inches 5.56 barrel with a pinned front sight base, ensuring rock-solid stability and precision. The classic A2 handguard provides a comfortable and secure grip, while the A2 detachable carry handle offers versatility for shooters who appreciate traditional styling with modern functionality. Engineered for reliability and accuracy, this complete upper is an excellent choice for those looking to enhance their rifle with a proven, battle-tested design.

The standard M4 upper receiver is designed for compatibility with M4 systems and offers a solid, military-grade construction
The 20 inches, 5.56 x 45mm rifle-length barrel with a 1:7 twist is made of 4150 chrome-moly vanadium steel with a QPQ corrosion-resistant finish, ensuring durability and accuracy
Sights A2 detachable carry handle and A2 front sight block with bayonet lug, featuring a detachable carry handle with a built-in front sight block and bayonet lug for enhanced functionality
The A2-style handguard is rifle-length, offering traditional styling and durability, perfect for users who prefer the classic look and function of the A2 design
The rifle-length gas system enhances overall reliability, providing smoother cycling and reducing gas pressure, especially for longer barreled rifles, improving both accuracy and performance
Muzzle device standard A2 flash hider, effective in reducing muzzle flash and aiding in stealth during shooting

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All NFA Rules Apply

These items are controlled by the U.S. Government and authorized for export only to the country of ultimate destination for use by the ultimate consignee or end-user(s) herein identified. They may not be resold, transferred, or otherwise disposed of, to any other country or to any person other than the authorized ultimate consignee or end-user(s), either in their original form or after being incorporated into other items, without first obtaining approval from the U.S. government or as otherwise authorized by U.S. law and regulations.

Local Law Compliance

Certain firearm parts and accessories, including AR-style upper receivers, are subject to complex and frequently changing federal, state, and local laws and regulations. While an upper receiver may be lawfully sold and shipped as a component, the legality of possessing, assembling, configuring, or using an upper receiver in certain states (e.g., California, Washington State) and localities depends on how it is assembled, combined with other components, and ultimately used. You are solely responsible for ensuring that any assembly, configuration, possession, or use complies with all federal, state, and local laws, including any so-called “assault weapon” bans and short-barreled rifle restrictions. We do not provide legal advice and are not responsible for unlawful configurations or uses.