Aero Precision APAR600201AC M4E1 Enhanced Upper Receiver 5.56x45mm NATO 7075-T6 Aluminum Black Anodized Receiver for AR-15
Note: Pricing at our Livonia, MI retail store may be higher than our website pricing.
- Firearms purchased at our Livonia, MI retail store include one (1) month of Unlimited Range time & a CPL class at a reduced price.
The M4E1 upper receiver is a one-piece design combining the handguard mounting platform with the upper itself. It is machined from 7075-T6 aluminum with, M4 feedramps, .250 takedown pin holes, and supports barrels with a diameter up to 1". Included is a barrel nut and wrench, port door and forward assist. This model has a black hardcoat anodized finish. NOTE: This upper is not piston-kit compatible.