M4e1 Assembled Upper Receiver Threaded 5.56mm Fde - M4e1 5.56 Assembled Upper Rcvr Threaded W/Ar15 Semi-Cut Blk

The M4E1 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 Aero's 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.FEATURES The M4E1 Threaded Upper Receiver is designed to pair perfectly with Aero's new M4E1 Lower Receiver giving you a billet looking receiver set at a fraction of the billet price. The enhanced forging that gives the upper receiver a ""billet look"" New picatinny profile that blends seamlessly with Aero Precisions Enhanced and ATLAS Series Handguards M4 Feedramps .250 takedown pin holes Includes threaded forward assist roll pin Includes port door and forward assist M4E1 Threaded Upper Receiver in Magpul FDE Cerakote Port Door and Forward Assist installed Available with a standard "M16 Cut" commonly found on M4 upper receivers or an "AR-15 Semi Cut". ;