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 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 System Ghost Firearms 7" M-Lok Free Float Hand Guard...Sale: $259.00MSRP: $329.00 -
On Sale
Grid Defense 7.5" .300 Blackout Flash Can Upper Receiver - Burnt Bronze
Sale: $329.00MSRP: $399.00Grid Defense 7.5" .300 Blackout Flash Can Upper Receiver - Burnt Bronze Made in the USA Chambered in .300 Blackout (7.62x35) Dimpled Flash Can Pistol Length Gas System 9" Grid Defense Octagon M-Lok Rail 7.5" 1:8 Twist 4150 Light HBar Barrel -...Sale: $329.00MSRP: $399.00 -
On Sale
Ghost Firearms Elite 7.5" Upper .300 Blackout Burnt Bronze
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 7.5" .300 Upper - Burnt Bronze Burnt Bronze Cerakote Finished Chambered in .300 Blackout (7.62x35) A2 Flash Hider 7.5" 1:8 Twist 4150 Light HBar Barrel Black Nitride Pistol Length Gas...Sale: $259.00MSRP: $329.00 -
On Sale
Grid Defense 7.5" 5.56 Flash Can Upper Receiver - Burnt Bronze
Sale: $329.00MSRP: $399.00Grid Defense 7.5" 5.56 Flash Can Upper Receiver - Burnt Bronze Finished in Burnt Bronze Cerakote 5.56 Flash Can Upper Receiver Mil Spec 7075-T6 Upper Receiver 7.5" 1:7 Twist 4150 M4 Barrel - Black Nitride 9" Grid Defense Octagon M-Lok Rail Pistol Length...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 7.5" .300 Blackout Upper Receiver - Burnt Bronze
Sale: $299.00MSRP: $379.00Grid Defense 7.5" .300 Blackout Upper Receiver Finished in Burnt Bronze Cerakote Mil Spec 7075-T6 Upper Receiver 7.5" 1:8 Twist 4150 Light HBAR Barrel - Black Nitride 7" Grid Defense Octagon M-Lok Rail Pistol Length Gas System A2 Flash...Sale: $299.00MSRP: $379.00