Grid Defense 10.5" 5.56 Flash Can Upper Receiver - OD Green

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On Sale
  • Magpul Olive Drab Green AR-15 Pistol Flash Can Upper Receiver
  • Grid Defense 10.5" 5.56 NATO Upper Receiver in OD Green Cerakote
SALE: $329.00
MSRP: $399.00
  • AR15 Bolt Carrier Group and Charging Handle | Mil Spec
  • AR15 BCG | 5.56 NATO/.223/.300 Blackout | Mil Spec
  • Nickel Boron M16 Bolt Carrier Group
  • M16 Bolt Carrier Group - Titanium Nitride Coated
  • Trinity Force UL - B.U.S. Polymer Sights
  • Magpul MBUS Gen II Front and Rear Sight Set



  • Finished in OD Green Cerakote
  • Made in the USA
  • 7075-T6 Mil-Spec Upper Receiver
  • 10.5" 1:7 Twist 4150 M4 Profile Barrel - Black Nitride
  • Chambered in 5.56x45 NATO
  • Carbine Length Gas System
  • .750 Low Profile Gas Block
  • 12" Octagon M-Lok Rail

*****Ammunition Notification***** Grid Defense test fires every custom upper to verify cycling. We do not guarantee cycling with all ammunition due to vast differences in the quality of ammunition. We will only warranty cycling with US made ammunition. We will not warranty cycling with imported, steel cased or reloaded rounds.


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Additional Information

OD Green
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2 Reviews

  • 5
    Love This Upper!!

    Posted by Ryan Harvey on Dec 9th 2020

    I received this today, which was the missing piece to my build. I did the matching Grid Defense OD Green lower, and they match up beautifully. I went out and fired this bad boy almost immediately. Great feel, great mill work, awesome cerakote. I can’t say enough good things about those product! Ok

  • 5
    10.5” OD Green 5.56 upper

    Posted by Matt P. on Apr 23rd 2020

    For and finish was good. Functions flawlessly. Accuracy is better than I am.

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