Description
Grid Defense 10.5" .300 Blackout Flash Can Upper Receiver
Finished in Magpul Flat Dark Earth Cerakote
Made in the USA
7075-T6 Mil-Spec Upper Receiver
10.5" 1:8 Twist 4150 Light HBar Barrel - Black Nitride
Chambered in .300 Blackout (7.62x35)
Pistol 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.
