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 Burnt Bronze
Sale: $259.00MSRP: $329.00Ghost Firearms Elite 10.5" 5.56 Upper Receiver - Burnt Bronze Chambered in 5.56x45 NATO (5.56/.223) A2 Flash Hider 10.5" 1:7 Twist 4150 M4 Barrel Black Nitride Carbine Length Gas System Ghost Firearms 9"...Sale: $259.00MSRP: $329.00 -
On Sale
Grid Defense 10.5" 5.56 Flash Can Upper Receiver - Burnt Bronze
Sale: $329.00MSRP: $399.00Grid Defense 10.5" 5.56 Flash Can Upper Receiver Finished in Burnt Bronze Cerakote Made in the USA 7075-T6 Mil-Spec Upper Receiver 10.5" 1:7 Twist 4150 M4 Profile Barrel - Black Nitride Chambered in 5.56x45 NATO Carbine Length Gas System .750...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense 10.5" .300 Blackout Flash Can Upper Receiver - Burnt Bronze
Sale: $329.00MSRP: $399.00Grid Defense 10.5" .300 Blackout Flash Can Upper Receiver Finished in Burnt Bronze 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...Sale: $329.00MSRP: $399.00 -
On Sale
Grid Defense Stainless Steel 10.5" 5.56 Upper Receiver - Burnt Bronze
Sale: $299.00MSRP: $399.00Grid Defense Stainless Steel 10.5" 556 Upper Receiver Burnt Bronze Cerakote Finish Chambered in 5.56 NATO Stainless Steel A2 Flash Hider 10.5" 1:7 Twist 416R Stainless Steel Barrel - M4 Profile Carbine Length Gas System Grid Defense 9" M-Lok Free Float...Sale: $299.00MSRP: $399.00