Aero Precision M4E1 AR-15 Threaded Assembled Upper Receiver

The M4E1 Threaded Upper Receiver features a new angular machined design that helps it stand apart from standard mil-spec upper receivers. This upper receiver features the same enhanced body profile as their M4E1 Enhanced Upper Receiver but is threaded to accept a standard AR15 barrel nut. It is forged from 7075-T6 Aluminum, precision machined to work with all mil-spec AR15 parts and includes the port door and forward assist pre-installed. The M4E1 Threaded Upper Receiver is designed to pair perfectly with their new M4E1 Lower Receiver, giving you a billet looking receiver set at a fraction of the billet price. Features: New enhanced forging that gives the upper receiver a "billet look" New picatinny profile that blends seamlessly with their Enhanced and ATLAS Series Handguards M4 Feedramps .250 takedown pin holes Laser engraved T-marks Includes threaded forward assist roll pin Includes port door and forward assist Includes: M4E1 Threaded Upper Receiver in Anodized Black, Kodiak Brown,