Grid Defense 16" 300 Blackout Upper Receiver - Tungsten Gray

• Tungsten Gray 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
• Mil-Spec 7075 T6 Grid Defense 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.