Aero Precision M5 Enhanced Assembled AR-10 Upper Receiver with Forward Assist

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Aero Precision .308/7.62 Black Nitride Bolt Carrier Group

Aero Precision .308/7.62 Black Nitride Bolt Carrier Group for AR-10


Enhanced M5E1 Upper with Internal Barrel Nut

The Aero Precision M5 Enhanced Upper features an internal steel barrel nut, and a secondary forged mounting surface for Aero Precision M5 enhanced handguards. This upper separates stress on the barrel and handguard, reducing deflection and increasing accuracy. This is especially important for shooters using laser aiming modules on their handguards, reducing the chance of zero shift.

This upper receiver features the same enhanced body profile as the threaded M5 Upper Receiver, so it matches with M5 lower receiver. It is forged from 7075-T6 Aluminum, precision machined to work with mil-spec AR15 parts, and includes the port door and forward assist pre-installed.

Note: This upper receiver will not work with standard handguards. Use Aero Precision M5 Enhanced handguards only.


  • M4 Feedramps
  • .2795 takedown pin holes
  • Comes assembled, with dust cover and forward assist installed

M5E1 Specific Details:

  • Handguard mounting platform is forged into the receiver
  • Works with Aero Precision M5 Enhanced Handguards
  • Barrel nut included
  • Torque to 65 ft. lbs. with an armorer’s wrench


  • M5 Enhanced Upper Receiver
  • Port Door and Forward Assist installed
  • Barrel nut
  • Barrel nut wrench


  • Platform: M5/AR-10. DPMS High Tang Profile.
  • Material: Machined from 7075-T6 forged aluminum
  • Finish: Anodized Black or Magpul Flat Dark Earth Cerakote
  • Compatibility: Works with standard DPMS .308 components
  • Weight(s): 18.22 oz
  • Barrel Nut Torque -65 ft-lbs
  • Made In America: Yes

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Have Questions About this Product?

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

Aero Precision Warranty

If for any reason you have a warranty issue with one of our products, please contact us at 253-272-8188.

Please describe your situation, include your name and order number or transaction id. One of our technical specialists will then review your claim and contact you within 3-5 business days.

If you have images to send, please email them to

Damaged Items

In regards to claims dealing with damaged or blemished products, we ask that you create a Help Desk Ticket on your My Account page. If you don’t have an account with us, please go to the Contact Us page and fill out the form for review within 72 hours upon receiving the shipment.

If you have images to send, please email them to

Failed Background Check

There will be a 30% restocking fee on all lower receivers returned because of failed background checks.

Disclaimer: Manufacturer’s warranty is subject to change without prior notice.