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AERO M4E1 Threaded Assembled Upper Receiver - Anodized Black
Aero Precision
Retail: $124.99
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Aero Precision Item #: AERO APAR700201AC -

The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as our M4E1 Enhanced Upper Receiver but is threaded to accept a standard AR15 barrel nut. It is forged from 7075-T6 Aluminum, precision machined to work with all mil-spec AR15 parts and includes the port door and forward assist pre-installed. The M4E1 Threaded Upper Receiver is designed to pair...

AR15 Assembled Upper Receiver - Anodized Black
Aero Precision
Retail: $99.99
Price: $79.99
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Aero Precision Item #: AERO APAR501603AC -

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