This Aero Precision M4E1 Threaded Upper Receiver, Assembled – Anodized features the 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 Aero’s M4E1 Enhanced Upper Receiver but is threaded to accept a standard AR-15 barrel nut.
It is forged from 7075-T6 Aluminum, precision-machined to work with all mil-spec AR15 parts & includes port door & forward assist, pre-installed.
- New enhanced forging that gives the upper receiver a “billet look”
- New picatinny profile that blends seamlessly with the Enhanced & ATLAS Series Handguards
- M4 Feed ramps
- .250 takedown pin holes
- Laser engraved T-marks
- Includes threaded forward assist roll pin
- Includes port door & forward assist, installed.
- M4E1 Threaded Upper Receiver in Anodized Black
- Port Door & Forward Assist installed
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