Aero Precision M4E1 Assembled Upper Receiver – Kodiak Brown Cerakote

The Aero Precision M4E1 Assembled Upper Receiver in Kodiak Brown Cerakote is a forged 7075-T6 aluminum upper designed for AR-15 builds. This assembled unit features a flat-top Picatinny rail, M4 feed ramps, and a forward assist assembly. The Kodiak Brown finish provides corrosion resistance and a distinct earth-tone appearance that pairs well with FDE or tan component builds.

The M4E1 platform uses an integrated upper receiver design with a tensioning system that improves fit with most mil-spec AR-15 lower receivers. This upper comes fully assembled with ejection port cover and forward assist installed—just add your barrel, handguard, and bolt carrier group. The forged construction and Type III hard-coat anodizing under the Cerakote layer ensure long-term durability. Machined to mil-spec dimensions for compatibility with standard AR-15 components.

• Type: Assembled AR-15 Upper Receiver
• Compatible Lower: Mil-spec AR-15
• Material: Forged 7075-T6 Aluminum
• Finish: Kodiak Brown Cerakote over Type III Hard Coat Anodizing
• Features: M4 Feed Ramps, Flat-Top Picatinny Rail, Forward Assist, Ejection Port Cover
• Includes: Assembled Upper Receiver (barrel, handguard, BCG not included)
• Installation: Compatible with standard AR-15 barrels and handguards