Grid Defense 7.5" .300 Blackout Upper Receiver - OD Green

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On Sale
  • OD Green Pistol Upper Receiver Chambered in 7.62x35 by Grid Defense
  • Mil Spec AR-15 Grid Defense 7.5" .300 Blackout Upper Receiver - Olive Drab Green
  • 7" Free Float M-LOK Hand Rail
Sale: $299.00
MSRP: $379.00
  • 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 7.5" .300 Blackout Upper Receiver 

  • Finished in Magpul OD Green Cerakote
  • Mil Spec 7075-T6 Upper Receiver
  • 7.5" 1:8 Twist 4150 Light HBAR Barrel - Black Nitride
  • 7" Grid Defense Octagon M-Lok Rail
  • Pistol Length Gas System
  • A2 Flash Hider
  • Chambered in .300 Blackout
  • 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.


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Additional Information

OD Green
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