Aero Precision M4E1 Upper Receiver


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This Aero Precision M4E1 Upper Receiver features a a new angular machined design that sets it 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 fully assembled with the dust cover and forward assist assemblies already installed.

Forged from 7075-T6 aircraft aluminum and then MIL-SPEC hard coat anodized to M16/M4 specs. Includes M4 feed ramps. Fully compatible with all MIL SPEC AR15/M16/M4 components.

T-marks are laser engraved on the top rail and look great against the rich black anodized finish. Aero Precision is well known for their high quality AR15 parts and this Aero Precision M4E1 upper receiver is no exception!

See also the M4E1 No Forward Assist version M4E1 Slick Side Upper


  • M4 Feed Ramps
  • Enhanced Forging That Gives The Upper Receiver A “Billet Look”
  • Picatinny Profile That Blends Seamlessly With The Enhanced And ATLAS Series Handguards
  • .250 Takedown Pin Holes
  • Laser Engraved T-marks
  • Includes Threaded Forward Assist Roll Pin
  • Includes Port Door And Forward Assist
Feed Ramps M4 Feed Ramps
Finish Hardcoat Anodized Black
Forward Assist Assembled with Forward Assist
Dust Cover Assembled with Dust Cover
Receiver Material 7075-T6 Forged Aluminum
T-Marks Laser Engraved


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