Grid Defense 10.5" 5.56 Flash Can Upper Receiver - Black Anodized

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On Sale
  • AR15 Pistol Upper Receiver with M-LOK Rail and Dimpled Flash Can
  • Black Anodized Pistol Upper Receiver Chambered in 5.56 NATO - Grid Defense
  • Milspec AR 15 Pistol Upper Receiver by Grid Defense
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
  • High Polish 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
Frequently bought together:


Grid Defense 10.5" 5.56 Flash Can Upper Receiver

  • Hard Coat Black Anodized Finish
  • Made in the USA
  • 7075-T6 Mil-Spec Upper Receiver
  • 10.5" 1:7 or 1:8 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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1 Review

  • 5
    10.5" 5.56 upper

    Posted by Bryan Martin on Feb 1st 2021

    Ordered this upper 2 weeks or so ago, got it last Saturday Jan 30th, shot it Sunday, I freaking love this upper! U can wrap ur hand around the handguard with no problem, follow up shots are quick and accurate, good looking too with that flash can.

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