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The Aero Precision M4E1 Threaded Stripped Upper Receiver features the same profile as Aero’s other M4E1 upper receivers but is threaded to accept a standard AR-15 barrel nut. Designed to match seamlessly with Aero’s M4E1 lower, this upper gives you billet looks without the billet price. Does not include forward assist or port door.
This upper receiver features the same enhanced body profile as Aero’s M4E1 Enhanced Upper Receiver but is threaded to accept a standard AR15 barrel nut. The M4E1 Threaded Upper Receiver features an angular machined design that helps it stand out from standard mil-spec upper receivers. It is forged from 7075-T6 Aluminum and machined to work with all mil-spec AR15 parts. The M4E1 Threaded Upper Receiver is designed to pair perfectly with Aero M4E1 lower receivers, giving you a billet looking receiver set at a fraction of the billet price. This stripped upper does not include a port door or forward assist.