Frequently bought together:
Description
Grid Defense 10.5" 300 Blackout Upper Receiver
- Hard Coat Black Anodized
- Chambered in 300 Blackout (7.62x35)
- 7075-T6 Milspec Upper Receiver
- 10.5" 1:8 Twist 4150 Steel Light HBar Barrel - Black Nitride
- .750 Low Profile Gas Block
- Pistol 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.