Grid Defense 16" 300 Blackout Upper Receiver - FDE

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On Sale
  • Magpul FDE 16" 300 Blackout AR15 Upper Receiver by Grid Defense
  • Mil Spec Grid Defense 16" 300 Blackout Upper Receiver in Flat Dark Earth Cerakote Finish
  • 16" Barrel with 14" Free Float M-LOK Hand Rail
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
Frequently bought together:


Grid Defense 16" 300 Blackout Upper Receiver - Flat Dark Earth

  • FDE Cerakote Finish
  • Chambered in .300 Blackout (7.62x35)
  • A2 Flash Hider
  • 16" 1:8 Twist 4150 Light HBar Barrel - Black Nitride
  • Pistol Length Gas System
  • Grid Defense 14" M-Lok Free Float Hand Guard
  • Grid Defense Mil-Spec 7075 T6 Upper Receiver

*****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

Flat Dark Earth
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1 Review

  • 5
    Grid Defense Upper

    Posted by Josh McCarley on Feb 6th 2020

    This upper for my 300 BLK out was awesome! Looks amazing and fits like a glove. Took it to the range and got it dialed in. I’m very impressed. You can just tell it is a quality piece. Further more I called to verify everything I ordered and was and Joe went above and beyond to make sure everything was perfect and I was satisfied with what I ordered. Truly a top notch company!

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