AR-15 | AR-10
Grid Defense is the first stop for your next AR15 build with our wide variety of barreled upper receivers to choose from. We offer a multitude of options from barrel length, color, handguard designs, and caliber. Whether you are a beginner or experienced gunsmith our uppers are designed to be easy to expand while staying cost friendly. Check out our Upper and Lower parts for everything else you need to complete your build.
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On Sale
Ghost Elite 10.5" Upper 5.56 Nato Blue Titanium
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 10.5" 5.56 Upper - Blue Titanium Made in the USA Chambered in 5.56x45 NATO (5.56/.223) A2 Flash Hider 10.5" 1:7 4150 M4 BarSale: $259.00MSRP: $329.00 -
On Sale
Ghost Fireams Elite 10.5" Upper .300 Blackout - OD Green
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 10.5".300 - OD Green OD Green Cerakote Finished Chambered in .300 Blackout (7.62x35) A2 Flash Hider 10.5" 1:8 Twist 4150 Light HBar Barrel Black NitrideSale: $259.00MSRP: $329.00 -
On Sale
Ghost Vital 10.5" 5.56 Pistol Kit
Sale: $419.00MSRP: $479.00Ghost Firearms Vital 10.5" 5.56 Upper - Black Chambered in 5.56x45 NATO (5.56/.223) A2 Birdcage Flash Hider 10.5" 1:7 Twist 4150 M4 Barrel Black Nitride Carbine Length Gas System Ghost...Sale: $419.00MSRP: $479.00 -
On Sale
Ghost Elite 16" Upper 9MM - FDE
Sale: $269.00MSRP: $349.00Ghost Elite 16" Upper 9MM - FDE Chambered in 9x19 Para A2 Flash Hider Magpul FDE Cerakote Finish 16" 1:10 Twist 4150 Light HBar Barrel Black Nitride 1/2x36 Thread Pattern GhSale: $269.00MSRP: $349.00 -
On Sale
Grid Defense 10.5" 5.56 Flash Can Upper Receiver - OD Green
Sale: $329.00MSRP: $399.00GRID DEFENSE 10.5" 5.56 FLASH CAN UPPER RECEIVER - OD GREEN Finished in OD Green Cerakote Made in the USA 7075-T6 Mil-Spec Upper Receiver 10.5" 1:7 Twist 4150 M4 Profile Barrel - Black Nitride...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 7.5" .300 Blackout Flash Can Upper Receiver - Black Anodized
Sale: $329.00MSRP: $399.00Grid Defense 7.5" .300 Blackout Flash Can Upper - Black Made in the USA Pistol Length Gas System Dimpled Flash Can 9" Grid Defense Octagon M-Lok Rail Chambered in .300 Blackout (7.62x35) 1:8 Twist...Sale: $329.00MSRP: $399.00 -
On Sale
Ghost Firearms Elite 16" Upper .300 AAC Blackout - Blue Titanium
Sale: $269.00MSRP: $349.00Ghost Firearms Elite 16".300 AAC Upper - Blue Titanium GHOST FIREARMS ELITE 16" UPPER - .300 AAC BLACKOUT UPPER - BLUE TITANIUM Chambered in .300 Blackout (7.62x35) A2 Flash Hider 16" 1:8 Twist 4150...Sale: $269.00MSRP: $349.00 -
On Sale
ALWAYS ARMED 10.5" 300 BLACKOUT UPPER RECEIVER - BURNT BRONZE
Sale: $209.00MSRP: $299.00Always Armed 10.5" 300 Blackout Upper Receiver - Burnt Bronze Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 10.5" 1:8 Twist 4150 Barrel with Black Nitride...Sale: $209.00MSRP: $299.00 -
On Sale
Ghost Firearms Elite 7.5" Upper 9MM - Blue Titanium
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 7.5" Upper 9MM - Blue Titanium Blue Titanium Finish Chambered in 9x19MM Para A2 Flash Hider 1/2x36 Thread Pattern 7.5" 1:10 Twist 4150 Light HBar Barrel Black NitrideSale: $259.00MSRP: $329.00 -
On Sale
Grid Defense 10.5" .300 Blackout Flash Can Upper Receiver - OD Green
Sale: $329.00MSRP: $399.00GRID DEFENSE 10.5" UPPER - .300 BLACKOUT UPPER RECEIVER WITH FLASH CAN - OD GREEN Finished in Magpul Olive Drab Green Cerakote Made in the USA 7075-T6 Mil-Spec Upper Receiver 10.5" 1:8 Twist...Sale: $329.00MSRP: $399.00 -
On Sale
Ghost Firearms Elite 7.5" Upper 9MM Tungsten Gray
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 7.5" Upper 9MM - Tungsten Gray Chambered in 9x19MM Para A2 Flash Hider 1/2x36 Thread Pattern 7.5" 1:10 Twist 4150 Light HBar Barrel Black Nitride Ghost Firearms 7"...Sale: $259.00MSRP: $329.00 -
On Sale
ALWAYS ARMED 7.5" 300 BLACKOUT UPPER RECEIVER - BURNT BRONZE
Sale: $209.00MSRP: $299.00Always Armed 7.5" 300 Blackout Upper Receiver - Burnt Bronze Made in the USA Mil-Spec 7075 T6 Upper Receiver with Dust Cover and Forward Assist 7.5" 1:8 Twist 4150 Barrel with Black Nitride Finish...Sale: $209.00MSRP: $299.00 -
On Sale
Ghost Firearms Elite 7.5" Upper 5.56 Nato - Burnt Bronze
Sale: $259.00MSRP: $329.00Ghost Firearms 7.5" 5.56 Upper - Burnt Bronze Chambered in 5.56x45 NATO (5.56/.223) A2 Flash Hider 7.5" 1:7 Twist 4150 M4 Barrel Black Nitride Pistol Length Gas SystemSale: $259.00MSRP: $329.00 -
On Sale
Ghost Elite 7.5" Upper 5.56 Nato Blue Titanium
Sale: $259.00MSRP: $329.00Ghost Firearms 7.5"5.56 Upper - Blue Titanium Blue Titanium Cerakote Finished Chambered in 5.56x45 NATO (5.56/.223) A2 Flash Hider 7.5" 1:7 Twist 4150 M4 Barrel Black NitrideSale: $259.00MSRP: $329.00 -
On Sale
Ghost Firearms Elite 10.5" Upper .300 Blackout - Blue Titanium
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 10.5" .300 Blackout Upper Receiver- Blue Titanium Blue Titanium Cerakote Finished Ghost Firearms 10.5" Upper Chambered in .300 Blackout (7.62x35) A2 Flash Hider<Sale: $259.00MSRP: $329.00 -
On Sale
Ghost Firearms Elite 10.5" Upper .300 Blackout - Tungsten Gray
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 10.5".300 - Tungsten Gray Tungsten Gray Cerakote Finished Chambered in .300 Blackout (7.62x35) A2 Flash Hider 10.5" 1:8 Twist 4150 Light HBar Barrel Black NitrideSale: $259.00MSRP: $329.00 -
On Sale
Ghost Elite 7.5" 7.62x39 Upper - FDE
Sale: $259.00MSRP: $329.00Ghost Elite 7.5" 7.62x39 Upper - FDE A2 Flash Hider 7.5" 1:10 Twist 4150 Light HBar Barrel Black Nitride Pistol Length Gas System Ghost Firearms 7" M-Lok Free Float Hand GuardSale: $259.00MSRP: $329.00 -
On Sale
Ghost Firearms 5.5" 9mm 1:10 HBAR Elite Barreled Upper - 7" M-LOK Rail - Flash Can - Tungsten Gray
Sale: $279.00MSRP: $329.00Ghost Firearms 5.5" Flash Can Upper with 7" Rail - Tungsten Gray Barrel - Length 5.5"/Black Nitride Finish Barrel Material 4150 Chrome Moly Steel 9mm LugerSale: $279.00MSRP: $329.00 -
On Sale
Ghost Firearms Elite 7.5" Upper 9MM Burnt Bronze
Sale: $279.00MSRP: $329.00Ghost Firearms Elite 7.5" Upper - Burnt Bronze A2 Flash Hider 7.5" 1:10 Twist 4150 Light HBar Barrel Black Nitride 1/2x36 Thread Pattern Ghost Firearms 7" M-Lok Free Float Hand GuardSale: $279.00MSRP: $329.00 -
On Sale
Grid Defense 7.5" 9mm Flash Can Upper Receiver - FDE
Sale: $329.00MSRP: $399.00Grid Defense 7.5" 9mm Flash Can Upper Receiver - Flat Dark Earth Finished in Magpul FDE Cerakote Grid Defense 7.5" Upper Receiver Mil Spec 7075-T6 Upper Receiver 7.5" 1:10 Twist 4150 Light HBar...Sale: $329.00MSRP: $399.00