Grid Defense 10.5" 5.56 Upper Receiver - FDE

$379.00 $329.00
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  • M16 Bolt Carrier Group
  • Nickel Boron M16 Bolt Carrier Group
  • M16 Bolt Carrier Group - Titanium Nitride Coated
  • Ghost Firearms Charging Handle
  • Trinity Force UL - B.U.S. Polymer Sights
  • Magpul MBUS Gen II Front and Rear Sight Set

Grid Defense 10.5" 5.56 Upper Receiver

  • Finished in Magpul Flat Dark Earth Cerakote
  • Chambered in 5.56x45 NATO
  • 7075-T6 Milspec Upper Receiver
  • 10.5" 1:7 Twist 4150 Steel M4 Barrel - Black Nitride
  • .750 Low Profile Gas Block
  • Carbine Length Gas System
  • A2 Flash Hider
  • Made in the USA


*****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.

Flat Dark Earth