Description
Grid Defense 10.5" 5.56 Flash Can Upper Receiver
- 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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