Description
Grid Defense 10.5″ 5.56 Upper Receiver – Periwinkle
Finished in Periwinkle Cerakote
Chambered in 5.56×45 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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