Aero Precision M4E1 Standard Stripped Upper Receiver 5.56 NATO Flat Dark Earth

Aero Precision M4E1 Standard Upper Receiver features an angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as the 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. Features:Enhanced forging that gives the upper receiver a "billet look"Picatinny profile that blends seamlessly with Enhanced and ATLAS Series HandguardsM4 Feedramps.250 takedown pin holes