Aero M4E1 Complete Upper Receiver – FDE Cerakote

The AR15 Upper Receiver comes with the port door and forward assist already installed. Forged from 7075-T6 aluminum, this  upper is precision machined to mil- spec M16/M4 specifications and features M4 feed ramps. Match this upper with one of our AR15 lower receivers for a solid and dependable fit.

Features:

• M4 Feed ramps
• .250 takedown pin holes
• Port door and forward assist installed