Aero Precision M4E1 Enhanced Upper Assembled AR15 5.56
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.
Please allow 1-3 business days for items to ship once payment has been received.
FFL's can be emailed, or mailed to us. Please reference your name and the item number to prevent any delays in shipping.
Long guns and accessories ship UPS Ground. Handguns are shipped USPS priority mail.
Once payment is received we will email you a tracking/delivery confirmation number.
NO CREDIT CARD FEES!