Aero Precision, M4E1 Assembled Upper, Flat Dark Earth, AR15
Works with standard AR15 components
Perfect for your custom AR15 build
M4 Feedramps
Includes threaded forward assist roll pin
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 and precision machined to work with all mil-spec AR15 parts.
