M4E1 Enhanced Upper Receiver
The Aero Precision M4E1 Enhanced Upper Receiver is a one-piece design combining the handguard mounting platform with the upper. Through superior engineering, we have condensed the parts needed to mount a free-floated handguard to a mere 8 screws. Since the handguard mounting surface and upper are of the same forging, not only is it a stronger system, but we are able to make additional lightening cuts to save weight and allow for more efficient cooling. Forged from 7075-T6 aluminum and precisely machined by Aero Precision, right here in the U.S.A.