Description
Grid Defense 10.5" 5.56 Upper Receiver
- Finished in Tungsten Gray 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.
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